diff --git a/web/edit/server/index.php b/web/edit/server/index.php
index d2aa5d40..023c95ed 100644
--- a/web/edit/server/index.php
+++ b/web/edit/server/index.php
@@ -95,33 +95,33 @@ exec (VESTA_CMD."v-list-sys-vesta-ssl json", $output, $return_var);
 $v_sys_ssl_str = json_decode(implode('', $output), true);
 if (!is_array($v_sys_ssl_str)) $v_sys_ssl_str = array('VESTA'=>array());
 unset($output);
-$v_sys_ssl_crt = $v_sys_ssl_str['VESTA']['CRT'];
-$v_sys_ssl_key = $v_sys_ssl_str['VESTA']['KEY'];
-$v_sys_ssl_ca = $v_sys_ssl_str['VESTA']['CA'];
-$v_sys_ssl_subject = $v_sys_ssl_str['VESTA']['SUBJECT'];
-$v_sys_ssl_aliases = $v_sys_ssl_str['VESTA']['ALIASES'];
-$v_sys_ssl_not_before = $v_sys_ssl_str['VESTA']['NOT_BEFORE'];
-$v_sys_ssl_not_after = $v_sys_ssl_str['VESTA']['NOT_AFTER'];
-$v_sys_ssl_signature = $v_sys_ssl_str['VESTA']['SIGNATURE'];
-$v_sys_ssl_pub_key = $v_sys_ssl_str['VESTA']['PUB_KEY'];
-$v_sys_ssl_issuer = $v_sys_ssl_str['VESTA']['ISSUER'];
+$v_sys_ssl_crt = isset($v_sys_ssl_str['VESTA']['CRT']) ? $v_sys_ssl_str['VESTA']['CRT'] : '';
+$v_sys_ssl_key = isset($v_sys_ssl_str['VESTA']['KEY']) ? $v_sys_ssl_str['VESTA']['KEY'] : '';
+$v_sys_ssl_ca = isset($v_sys_ssl_str['VESTA']['CA']) ? $v_sys_ssl_str['VESTA']['CA'] : '';
+$v_sys_ssl_subject = isset($v_sys_ssl_str['VESTA']['SUBJECT']) ? $v_sys_ssl_str['VESTA']['SUBJECT'] : '';
+$v_sys_ssl_aliases = isset($v_sys_ssl_str['VESTA']['ALIASES']) ? $v_sys_ssl_str['VESTA']['ALIASES'] : '';
+$v_sys_ssl_not_before = isset($v_sys_ssl_str['VESTA']['NOT_BEFORE']) ? $v_sys_ssl_str['VESTA']['NOT_BEFORE'] : '';
+$v_sys_ssl_not_after = isset($v_sys_ssl_str['VESTA']['NOT_AFTER']) ? $v_sys_ssl_str['VESTA']['NOT_AFTER'] : '';
+$v_sys_ssl_signature = isset($v_sys_ssl_str['VESTA']['SIGNATURE']) ? $v_sys_ssl_str['VESTA']['SIGNATURE'] : '';
+$v_sys_ssl_pub_key = isset($v_sys_ssl_str['VESTA']['PUB_KEY']) ? $v_sys_ssl_str['VESTA']['PUB_KEY'] : '';
+$v_sys_ssl_issuer = isset($v_sys_ssl_str['VESTA']['ISSUER']) ? $v_sys_ssl_str['VESTA']['ISSUER'] : '';
 
 // List mail ssl certificate info
-if (!empty($_SESSION['VESTA_CERTIFICATE'])); {
+if (!empty($_SESSION['VESTA_CERTIFICATE'])) {
     exec (VESTA_CMD."v-list-sys-mail-ssl json", $output, $return_var);
     $v_mail_ssl_str = json_decode(implode('', $output), true);
     if (!is_array($v_mail_ssl_str)) $v_mail_ssl_str = array('MAIL'=>array());
     unset($output);
-    $v_mail_ssl_crt = $v_mail_ssl_str['MAIL']['CRT'];
-    $v_mail_ssl_key = $v_mail_ssl_str['MAIL']['KEY'];
-    $v_mail_ssl_ca = $v_mail_ssl_str['MAIL']['CA'];
-    $v_mail_ssl_subject = $v_mail_ssl_str['MAIL']['SUBJECT'];
-    $v_mail_ssl_aliases = $v_mail_ssl_str['MAIL']['ALIASES'];
-    $v_mail_ssl_not_before = $v_mail_ssl_str['MAIL']['NOT_BEFORE'];
-    $v_mail_ssl_not_after = $v_mail_ssl_str['MAIL']['NOT_AFTER'];
-    $v_mail_ssl_signature = $v_mail_ssl_str['MAIL']['SIGNATURE'];
-    $v_mail_ssl_pub_key = $v_mail_ssl_str['MAIL']['PUB_KEY'];
-    $v_mail_ssl_issuer = $v_mail_ssl_str['MAIL']['ISSUER'];
+    $v_mail_ssl_crt = isset($v_mail_ssl_str['MAIL']['CRT']) ? $v_mail_ssl_str['MAIL']['CRT'] : '';
+    $v_mail_ssl_key = isset($v_mail_ssl_str['MAIL']['KEY']) ? $v_mail_ssl_str['MAIL']['KEY'] : '';
+    $v_mail_ssl_ca = isset($v_mail_ssl_str['MAIL']['CA']) ? $v_mail_ssl_str['MAIL']['CA'] : '';
+    $v_mail_ssl_subject = isset($v_mail_ssl_str['MAIL']['SUBJECT']) ? $v_mail_ssl_str['MAIL']['SUBJECT'] : '';
+    $v_mail_ssl_aliases = isset($v_mail_ssl_str['MAIL']['ALIASES']) ? $v_mail_ssl_str['MAIL']['ALIASES'] : '';
+    $v_mail_ssl_not_before = isset($v_mail_ssl_str['MAIL']['NOT_BEFORE']) ? $v_mail_ssl_str['MAIL']['NOT_BEFORE'] : '';
+    $v_mail_ssl_not_after = isset($v_mail_ssl_str['MAIL']['NOT_AFTER']) ? $v_mail_ssl_str['MAIL']['NOT_AFTER'] : '';
+    $v_mail_ssl_signature = isset($v_mail_ssl_str['MAIL']['SIGNATURE']) ? $v_mail_ssl_str['MAIL']['SIGNATURE'] : '';
+    $v_mail_ssl_pub_key = isset($v_mail_ssl_str['MAIL']['PUB_KEY']) ? $v_mail_ssl_str['MAIL']['PUB_KEY'] : '';
+    $v_mail_ssl_issuer = isset($v_mail_ssl_str['MAIL']['ISSUER']) ? $v_mail_ssl_str['MAIL']['ISSUER'] : '';
 }
 
 // Check POST request
@@ -252,16 +252,16 @@ if (!empty($_POST['save'])) {
                 $v_mail_ssl_str = json_decode(implode('', $output), true);
                 if (!is_array($v_mail_ssl_str)) $v_mail_ssl_str = array('MAIL'=>array());
                 unset($output);
-                $v_mail_ssl_crt = $v_mail_ssl_str['MAIL']['CRT'];
-                $v_mail_ssl_key = $v_mail_ssl_str['MAIL']['KEY'];
-                $v_mail_ssl_ca = $v_mail_ssl_str['MAIL']['CA'];
-                $v_mail_ssl_subject = $v_mail_ssl_str['MAIL']['SUBJECT'];
-                $v_mail_ssl_aliases = $v_mail_ssl_str['MAIL']['ALIASES'];
-                $v_mail_ssl_not_before = $v_mail_ssl_str['MAIL']['NOT_BEFORE'];
-                $v_mail_ssl_not_after = $v_mail_ssl_str['MAIL']['NOT_AFTER'];
-                $v_mail_ssl_signature = $v_mail_ssl_str['MAIL']['SIGNATURE'];
-                $v_mail_ssl_pub_key = $v_mail_ssl_str['MAIL']['PUB_KEY'];
-                $v_mail_ssl_issuer = $v_mail_ssl_str['MAIL']['ISSUER'];
+                $v_mail_ssl_crt = isset($v_mail_ssl_str['MAIL']['CRT']) ? $v_mail_ssl_str['MAIL']['CRT'] : '';
+                $v_mail_ssl_key = isset($v_mail_ssl_str['MAIL']['KEY']) ? $v_mail_ssl_str['MAIL']['KEY'] : '';
+                $v_mail_ssl_ca = isset($v_mail_ssl_str['MAIL']['CA']) ? $v_mail_ssl_str['MAIL']['CA'] : '';
+                $v_mail_ssl_subject = isset($v_mail_ssl_str['MAIL']['SUBJECT']) ? $v_mail_ssl_str['MAIL']['SUBJECT'] : '';
+                $v_mail_ssl_aliases = isset($v_mail_ssl_str['MAIL']['ALIASES']) ? $v_mail_ssl_str['MAIL']['ALIASES'] : '';
+                $v_mail_ssl_not_before = isset($v_mail_ssl_str['MAIL']['NOT_BEFORE']) ? $v_mail_ssl_str['MAIL']['NOT_BEFORE'] : '';
+                $v_mail_ssl_not_after = isset($v_mail_ssl_str['MAIL']['NOT_AFTER']) ? $v_mail_ssl_str['MAIL']['NOT_AFTER'] : '';
+                $v_mail_ssl_signature = isset($v_mail_ssl_str['MAIL']['SIGNATURE']) ? $v_mail_ssl_str['MAIL']['SIGNATURE'] : '';
+                $v_mail_ssl_pub_key = isset($v_mail_ssl_str['MAIL']['PUB_KEY']) ? $v_mail_ssl_str['MAIL']['PUB_KEY'] : '';
+                $v_mail_ssl_issuer = isset($v_mail_ssl_str['MAIL']['ISSUER']) ? $v_mail_ssl_str['MAIL']['ISSUER'] : '';
             }
         }
     }
@@ -453,17 +453,18 @@ if (!empty($_POST['save'])) {
                 // List SSL certificate info
                 exec (VESTA_CMD."v-list-sys-vesta-ssl json", $output, $return_var);
                 $v_sys_ssl_str = json_decode(implode('', $output), true);
+                if (!is_array($v_sys_ssl_str)) $v_sys_ssl_str = array('VESTA'=>array());
                 unset($output);
-                $v_sys_ssl_crt = $v_sys_ssl_str['VESTA']['CRT'];
-                $v_sys_ssl_key = $v_sys_ssl_str['VESTA']['KEY'];
-                $v_sys_ssl_ca = $v_sys_ssl_str['VESTA']['CA'];
-                $v_sys_ssl_subject = $v_sys_ssl_str['VESTA']['SUBJECT'];
-                $v_sys_ssl_aliases = $v_sys_ssl_str['VESTA']['ALIASES'];
-                $v_sys_ssl_not_before = $v_sys_ssl_str['VESTA']['NOT_BEFORE'];
-                $v_sys_ssl_not_after = $v_sys_ssl_str['VESTA']['NOT_AFTER'];
-                $v_sys_ssl_signature = $v_sys_ssl_str['VESTA']['SIGNATURE'];
-                $v_sys_ssl_pub_key = $v_sys_ssl_str['VESTA']['PUB_KEY'];
-                $v_sys_ssl_issuer = $v_sys_ssl_str['VESTA']['ISSUER'];
+                $v_sys_ssl_crt = isset($v_sys_ssl_str['VESTA']['CRT']) ? $v_sys_ssl_str['VESTA']['CRT'] : '';
+                $v_sys_ssl_key = isset($v_sys_ssl_str['VESTA']['KEY']) ? $v_sys_ssl_str['VESTA']['KEY'] : '';
+                $v_sys_ssl_ca = isset($v_sys_ssl_str['VESTA']['CA']) ? $v_sys_ssl_str['VESTA']['CA'] : '';
+                $v_sys_ssl_subject = isset($v_sys_ssl_str['VESTA']['SUBJECT']) ? $v_sys_ssl_str['VESTA']['SUBJECT'] : '';
+                $v_sys_ssl_aliases = isset($v_sys_ssl_str['VESTA']['ALIASES']) ? $v_sys_ssl_str['VESTA']['ALIASES'] : '';
+                $v_sys_ssl_not_before = isset($v_sys_ssl_str['VESTA']['NOT_BEFORE']) ? $v_sys_ssl_str['VESTA']['NOT_BEFORE'] : '';
+                $v_sys_ssl_not_after = isset($v_sys_ssl_str['VESTA']['NOT_AFTER']) ? $v_sys_ssl_str['VESTA']['NOT_AFTER'] : '';
+                $v_sys_ssl_signature = isset($v_sys_ssl_str['VESTA']['SIGNATURE']) ? $v_sys_ssl_str['VESTA']['SIGNATURE'] : '';
+                $v_sys_ssl_pub_key = isset($v_sys_ssl_str['VESTA']['PUB_KEY']) ? $v_sys_ssl_str['VESTA']['PUB_KEY'] : '';
+                $v_sys_ssl_issuer = isset($v_sys_ssl_str['VESTA']['ISSUER']) ? $v_sys_ssl_str['VESTA']['ISSUER'] : '';
             }
         }
     }
@@ -499,17 +500,18 @@ if (!empty($_POST['save'])) {
                 // List ssl certificate info
                 exec (VESTA_CMD."v-list-sys-vesta-ssl json", $output, $return_var);
                 $v_sys_ssl_str = json_decode(implode('', $output), true);
+                if (!is_array($v_sys_ssl_str)) $v_sys_ssl_str = array('VESTA'=>array());
                 unset($output);
-                $v_sys_ssl_crt = $v_sys_ssl_str['VESTA']['CRT'];
-                $v_sys_ssl_key = $v_sys_ssl_str['VESTA']['KEY'];
-                $v_sys_ssl_ca = $v_sys_ssl_str['VESTA']['CA'];
-                $v_sys_ssl_subject = $v_sys_ssl_str['VESTA']['SUBJECT'];
-                $v_sys_ssl_aliases = $v_sys_ssl_str['VESTA']['ALIASES'];
-                $v_sys_ssl_not_before = $v_sys_ssl_str['VESTA']['NOT_BEFORE'];
-                $v_sys_ssl_not_after = $v_sys_ssl_str['VESTA']['NOT_AFTER'];
-                $v_sys_ssl_signature = $v_sys_ssl_str['VESTA']['SIGNATURE'];
-                $v_sys_ssl_pub_key = $v_sys_ssl_str['VESTA']['PUB_KEY'];
-                $v_sys_ssl_issuer = $v_sys_ssl_str['VESTA']['ISSUER'];
+                $v_sys_ssl_crt = isset($v_sys_ssl_str['VESTA']['CRT']) ? $v_sys_ssl_str['VESTA']['CRT'] : '';
+                $v_sys_ssl_key = isset($v_sys_ssl_str['VESTA']['KEY']) ? $v_sys_ssl_str['VESTA']['KEY'] : '';
+                $v_sys_ssl_ca = isset($v_sys_ssl_str['VESTA']['CA']) ? $v_sys_ssl_str['VESTA']['CA'] : '';
+                $v_sys_ssl_subject = isset($v_sys_ssl_str['VESTA']['SUBJECT']) ? $v_sys_ssl_str['VESTA']['SUBJECT'] : '';
+                $v_sys_ssl_aliases = isset($v_sys_ssl_str['VESTA']['ALIASES']) ? $v_sys_ssl_str['VESTA']['ALIASES'] : '';
+                $v_sys_ssl_not_before = isset($v_sys_ssl_str['VESTA']['NOT_BEFORE']) ? $v_sys_ssl_str['VESTA']['NOT_BEFORE'] : '';
+                $v_sys_ssl_not_after = isset($v_sys_ssl_str['VESTA']['NOT_AFTER']) ? $v_sys_ssl_str['VESTA']['NOT_AFTER'] : '';
+                $v_sys_ssl_signature = isset($v_sys_ssl_str['VESTA']['SIGNATURE']) ? $v_sys_ssl_str['VESTA']['SIGNATURE'] : '';
+                $v_sys_ssl_pub_key = isset($v_sys_ssl_str['VESTA']['PUB_KEY']) ? $v_sys_ssl_str['VESTA']['PUB_KEY'] : '';
+                $v_sys_ssl_issuer = isset($v_sys_ssl_str['VESTA']['ISSUER']) ? $v_sys_ssl_str['VESTA']['ISSUER'] : '';
             }
         }
     }
diff --git a/web/inc/mail-wrapper.php b/web/inc/mail-wrapper.php
index 4281aaad..c5041c3a 100755
--- a/web/inc/mail-wrapper.php
+++ b/web/inc/mail-wrapper.php
@@ -20,6 +20,7 @@ include("/usr/local/vesta/web/inc/main.php");
 // Set system language
 exec (VESTA_CMD . "v-list-sys-config json", $output, $return_var);
 $data = json_decode(implode('', $output), true);
+if (!is_array($data)) $data = array('config' => array());
 if (!empty( $data['config']['LANGUAGE'])) {
     $_SESSION['language'] = $data['config']['LANGUAGE'];
 } else {
diff --git a/web/inc/main.php b/web/inc/main.php
index 86913dd5..99e4ca90 100644
--- a/web/inc/main.php
+++ b/web/inc/main.php
@@ -112,13 +112,15 @@ function get_favourites(){
     $data = is_array($data) ? array_reverse($data, true) : array();
     $favourites = array();
 
-    foreach($data['Favourites'] as $key => $favourite){
-        $favourites[$key] = array();
+    if (isset($data['Favourites']) && is_array($data['Favourites'])) {
+        foreach($data['Favourites'] as $key => $favourite){
+            $favourites[$key] = array();
 
-        $items = explode(',', $favourite);
-        foreach($items as $item){
-            if($item)
-                $favourites[$key][trim($item)] = 1;
+            $items = explode(',', $favourite);
+            foreach($items as $item){
+                if($item)
+                    $favourites[$key][trim($item)] = 1;
+            }
         }
     }
 
diff --git a/web/list/firewall/index.php b/web/list/firewall/index.php
index 35799490..6750496d 100644
--- a/web/list/firewall/index.php
+++ b/web/list/firewall/index.php
@@ -14,7 +14,7 @@ if ($_SESSION['user'] != 'admin') {
 // Data
 exec (VESTA_CMD."v-list-firewall json", $output, $return_var);
 $data = json_decode(implode('', $output), true);
-if (version_compare(PHP_VERSION, '5.6', '==')) { $data = array_reverse($data, true); } else { $data = is_array($data) ? array_reverse($data, true) : array(); }
+$data = is_array($data) ? array_reverse($data, true) : array();
 unset($output);
 
 // Render page
diff --git a/web/login/index.php b/web/login/index.php
index 7ff68291..8a22e204 100644
--- a/web/login/index.php
+++ b/web/login/index.php
@@ -111,7 +111,7 @@ if (isset($_POST['user']) && isset($_POST['password'])) {
                     exec (VESTA_CMD."v-list-sys-languages json", $output, $return_var);
                     $languages = json_decode(implode('', $output), true);
                     if (!is_array($languages)) $languages = array();
-                    if (in_array($data[$v_user]['LANGUAGE'], $languages)){
+                    if (isset($data[$v_user]['LANGUAGE']) && in_array($data[$v_user]['LANGUAGE'], $languages)){
                         $_SESSION['language'] = $data[$v_user]['LANGUAGE'];
                     } else {
                         $_SESSION['language'] = 'en';
diff --git a/web/reset/index.php b/web/reset/index.php
index 4094815b..4c3629a0 100644
--- a/web/reset/index.php
+++ b/web/reset/index.php
@@ -32,7 +32,7 @@ if ((!empty($_POST['user'])) && (empty($_POST['code']))) {
         if (strlen($rkeyexp)>9) $rkeyexp=intval($rkeyexp);
         unset($output);
         if ($rkeyexp === null || $rkeyexp < time() - 900) {
-            if ($email == $data[$user]['CONTACT']) {
+            if (isset($data[$user]['CONTACT']) && $email == $data[$user]['CONTACT']) {
                 exec("/usr/bin/sudo /usr/local/vesta/bin/v-change-user-rkey ".$v_user, $output, $return_var);
                 unset($output);
                 $CMD="/usr/bin/sudo /usr/local/vesta/bin/v-get-user-value ".$v_user." RKEY";
@@ -42,10 +42,10 @@ if ((!empty($_POST['user'])) && (empty($_POST['code']))) {
                 //echo $rkey; exit;
                 //echo $CMD."\n<br />";
                 //var_dump($rkey); exit;
-                $fname = $data[$user]['FNAME'];
-                $lname = $data[$user]['LNAME'];
-                $contact = $data[$user]['CONTACT'];
-                $to = $data[$user]['CONTACT'];
+                $fname = isset($data[$user]['FNAME']) ? $data[$user]['FNAME'] : '';
+                $lname = isset($data[$user]['LNAME']) ? $data[$user]['LNAME'] : '';
+                $contact = isset($data[$user]['CONTACT']) ? $data[$user]['CONTACT'] : '';
+                $to = isset($data[$user]['CONTACT']) ? $data[$user]['CONTACT'] : '';
                 $subject = __('MAIL_RESET_SUBJECT',date("Y-m-d H:i:s"));
                 $hostname = exec('hostname');
                 $from = __('MAIL_FROM',$hostname);
@@ -88,7 +88,7 @@ if ((!empty($_POST['user'])) && (!empty($_POST['code'])) && (!empty($_POST['pass
             $data = json_decode(implode('', $output), true);
             if (!is_array($data)) { $data = array(); }
             unset($output);
-            $rkey = $data[$user]['RKEY'];
+            $rkey = isset($data[$user]['RKEY']) ? $data[$user]['RKEY'] : '';
             if (hash_equals($rkey, $_POST['code'])) {
                 unset($output);
                 exec("/usr/bin/sudo /usr/local/vesta/bin/v-get-user-value ".$v_user." RKEYEXP", $output, $return_var);