diff --git a/src/Legacy/Cache/APCu.php b/src/Legacy/Cache/APCu.php
index 471c2b7ff..a580bb871 100644
--- a/src/Legacy/Cache/APCu.php
+++ b/src/Legacy/Cache/APCu.php
@@ -13,6 +13,8 @@ use TorrentPier\Dev;
 
 use MatthiasMullie\Scrapbook\Adapters\Apc;
 
+use Exception;
+
 /**
  * Class APCu
  * @package TorrentPier\Legacy\Cache
@@ -54,6 +56,9 @@ class APCu extends Common
      */
     public function __construct(string $prefix)
     {
+        if (!$this->isInstalled()) {
+            throw new Exception('ext-apcu not installed. Check out php.ini file');
+        }
         $this->apcu = new Apc();
         $this->prefix = $prefix;
         $this->dbg_enabled = Dev::sqlDebugAllowed();
@@ -127,4 +132,14 @@ class APCu extends Common
 
         return $result;
     }
+
+    /**
+     * Checking if APCu is installed
+     *
+     * @return bool
+     */
+    private function isInstalled(): bool
+    {
+        return extension_loaded('apcu') && function_exists('apcu_fetch');
+    }
 }
diff --git a/src/Legacy/Cache/Memcached.php b/src/Legacy/Cache/Memcached.php
index 12ee93594..acbc80e14 100644
--- a/src/Legacy/Cache/Memcached.php
+++ b/src/Legacy/Cache/Memcached.php
@@ -14,6 +14,8 @@ use TorrentPier\Dev;
 use Memcached as MemcachedClient;
 use MatthiasMullie\Scrapbook\Adapters\Memcached as MemcachedCache;
 
+use Exception;
+
 /**
  * Class Memcached
  * @package TorrentPier\Legacy\Cache
@@ -77,6 +79,9 @@ class Memcached extends Common
      */
     public function __construct(array $cfg, string $prefix)
     {
+        if (!$this->isInstalled()) {
+            throw new Exception('ext-memcached not installed. Check out php.ini file');
+        }
         $this->client = new MemcachedClient();
         $this->cfg = $cfg;
         $this->prefix = $prefix;
@@ -98,7 +103,7 @@ class Memcached extends Common
         }
 
         if (!$this->connected) {
-            die("Could not connect to $this->engine server");
+            throw new Exception("Could not connect to $this->engine server");
         }
 
         $this->memcached = new MemcachedCache($this->client);
@@ -187,4 +192,14 @@ class Memcached extends Common
 
         return $result;
     }
+
+    /**
+     * Checking if Memcached is installed
+     *
+     * @return bool
+     */
+    private function isInstalled(): bool
+    {
+        return extension_loaded('memcached') && class_exists('Memcached');
+    }
 }
diff --git a/src/Legacy/Cache/Redis.php b/src/Legacy/Cache/Redis.php
index 24e9b4e19..84b3d5e47 100644
--- a/src/Legacy/Cache/Redis.php
+++ b/src/Legacy/Cache/Redis.php
@@ -14,6 +14,8 @@ use TorrentPier\Dev;
 use Redis as RedisClient;
 use MatthiasMullie\Scrapbook\Adapters\Redis as RedisCache;
 
+use Exception;
+
 /**
  * Class Redis
  * @package TorrentPier\Legacy\Cache
@@ -77,6 +79,9 @@ class Redis extends Common
      */
     public function __construct(array $cfg, string $prefix)
     {
+        if (!$this->isInstalled()) {
+            throw new Exception('ext-redis not installed. Check out php.ini file');
+        }
         $this->client = new RedisClient();
         $this->cfg = $cfg;
         $this->prefix = $prefix;
@@ -100,7 +105,7 @@ class Redis extends Common
         }
 
         if (!$this->connected) {
-            die("Could not connect to $this->engine server");
+            throw new Exception("Could not connect to $this->engine server");
         }
 
         $this->redis = new RedisCache($this->client);
@@ -189,4 +194,14 @@ class Redis extends Common
 
         return $result;
     }
+
+    /**
+     * Checking if Redis is installed
+     *
+     * @return bool
+     */
+    private function isInstalled(): bool
+    {
+        return extension_loaded('redis') && class_exists('Redis');
+    }
 }
diff --git a/src/Legacy/Cache/Sqlite.php b/src/Legacy/Cache/Sqlite.php
index e345410e6..219872b01 100644
--- a/src/Legacy/Cache/Sqlite.php
+++ b/src/Legacy/Cache/Sqlite.php
@@ -14,6 +14,8 @@ use TorrentPier\Dev;
 use MatthiasMullie\Scrapbook\Adapters\SQLite as SQLiteCache;
 use PDO;
 
+use Exception;
+
 /**
  * Class Sqlite
  * @package TorrentPier\Legacy\Cache
@@ -34,6 +36,13 @@ class Sqlite extends Common
      */
     public string $engine = 'SQLite';
 
+    /**
+     * SQLite DB file extension
+     *
+     * @var string
+     */
+    public string $dbExtension = '.db';
+
     /**
      * Cache prefix
      *
@@ -56,7 +65,10 @@ class Sqlite extends Common
      */
     public function __construct(string $dir, string $prefix)
     {
-        $client = new PDO("sqlite:$dir.db");
+        if (!$this->isInstalled()) {
+            throw new Exception('ext-pdo_sqlite not installed. Check out php.ini file');
+        }
+        $client = new PDO('sqlite:' . $dir . $this->dbExtension);
         $this->sqlite = new SQLiteCache($client);
         $this->prefix = $prefix;
         $this->dbg_enabled = Dev::sqlDebugAllowed();
@@ -130,4 +142,14 @@ class Sqlite extends Common
 
         return $result;
     }
+
+    /**
+     * Checking if PDO SQLite is installed
+     *
+     * @return bool
+     */
+    private function isInstalled(): bool
+    {
+        return extension_loaded('pdo_sqlite') && class_exists('PDO');
+    }
 }
diff --git a/src/Legacy/Datastore/APCu.php b/src/Legacy/Datastore/APCu.php
index 46a0c0e44..c1a55a124 100644
--- a/src/Legacy/Datastore/APCu.php
+++ b/src/Legacy/Datastore/APCu.php
@@ -13,6 +13,8 @@ use TorrentPier\Dev;
 
 use MatthiasMullie\Scrapbook\Adapters\Apc;
 
+use Exception;
+
 /**
  * Class APCu
  * @package TorrentPier\Legacy\Datastore
@@ -47,6 +49,9 @@ class APCu extends Common
      */
     public function __construct(string $prefix)
     {
+        if (!$this->isInstalled()) {
+            throw new Exception('ext-apcu not installed. Check out php.ini file');
+        }
         $this->apcu = new Apc();
         $this->prefix = $prefix;
         $this->dbg_enabled = Dev::sqlDebugAllowed();
@@ -121,4 +126,14 @@ class APCu extends Common
             $this->num_queries++;
         }
     }
+
+    /**
+     * Checking if APCu is installed
+     *
+     * @return bool
+     */
+    private function isInstalled(): bool
+    {
+        return extension_loaded('apcu') && function_exists('apcu_fetch');
+    }
 }
diff --git a/src/Legacy/Datastore/Memcached.php b/src/Legacy/Datastore/Memcached.php
index 6660d2add..0757069ba 100644
--- a/src/Legacy/Datastore/Memcached.php
+++ b/src/Legacy/Datastore/Memcached.php
@@ -14,6 +14,8 @@ use TorrentPier\Dev;
 use Memcached as MemcachedClient;
 use MatthiasMullie\Scrapbook\Adapters\Memcached as MemcachedCache;
 
+use Exception;
+
 /**
  * Class Memcached
  * @package TorrentPier\Legacy\Datastore
@@ -70,6 +72,9 @@ class Memcached extends Common
      */
     public function __construct(array $cfg, string $prefix)
     {
+        if (!$this->isInstalled()) {
+            throw new Exception('ext-memcached not installed. Check out php.ini file');
+        }
         $this->client = new MemcachedClient();
         $this->cfg = $cfg;
         $this->prefix = $prefix;
@@ -91,7 +96,7 @@ class Memcached extends Common
         }
 
         if (!$this->connected) {
-            die("Could not connect to $this->engine server");
+            throw new Exception("Could not connect to $this->engine server");
         }
 
         $this->memcached = new MemcachedCache($this->client);
@@ -181,4 +186,14 @@ class Memcached extends Common
             $this->num_queries++;
         }
     }
+
+    /**
+     * Checking if Memcached is installed
+     *
+     * @return bool
+     */
+    private function isInstalled(): bool
+    {
+        return extension_loaded('memcached') && class_exists('Memcached');
+    }
 }
diff --git a/src/Legacy/Datastore/Redis.php b/src/Legacy/Datastore/Redis.php
index 96749bb7a..3b5909867 100644
--- a/src/Legacy/Datastore/Redis.php
+++ b/src/Legacy/Datastore/Redis.php
@@ -14,6 +14,8 @@ use TorrentPier\Dev;
 use Redis as RedisClient;
 use MatthiasMullie\Scrapbook\Adapters\Redis as RedisCache;
 
+use Exception;
+
 /**
  * Class Redis
  * @package TorrentPier\Legacy\Datastore
@@ -70,6 +72,9 @@ class Redis extends Common
      */
     public function __construct(array $cfg, string $prefix)
     {
+        if (!$this->isInstalled()) {
+            throw new Exception('ext-redis not installed. Check out php.ini file');
+        }
         $this->client = new RedisClient();
         $this->cfg = $cfg;
         $this->prefix = $prefix;
@@ -93,7 +98,7 @@ class Redis extends Common
         }
 
         if (!$this->connected) {
-            die("Could not connect to $this->engine server");
+            throw new Exception("Could not connect to $this->engine server");
         }
 
         $this->redis = new RedisCache($this->client);
@@ -183,4 +188,14 @@ class Redis extends Common
             $this->num_queries++;
         }
     }
+
+    /**
+     * Checking if Redis is installed
+     *
+     * @return bool
+     */
+    private function isInstalled(): bool
+    {
+        return extension_loaded('redis') && class_exists('Redis');
+    }
 }
diff --git a/src/Legacy/Datastore/Sqlite.php b/src/Legacy/Datastore/Sqlite.php
index f6e766e01..6adac7f2a 100644
--- a/src/Legacy/Datastore/Sqlite.php
+++ b/src/Legacy/Datastore/Sqlite.php
@@ -14,6 +14,8 @@ use TorrentPier\Dev;
 use MatthiasMullie\Scrapbook\Adapters\SQLite as SQLiteCache;
 use PDO;
 
+use Exception;
+
 /**
  * Class Sqlite
  * @package TorrentPier\Legacy\Datastore
@@ -27,6 +29,13 @@ class Sqlite extends Common
      */
     public string $engine = 'SQLite';
 
+    /**
+     * SQLite DB file extension
+     *
+     * @var string
+     */
+    public string $dbExtension = '.db';
+
     /**
      * Cache prefix
      *
@@ -49,7 +58,10 @@ class Sqlite extends Common
      */
     public function __construct(string $dir, string $prefix)
     {
-        $client = new PDO("sqlite:$dir.db");
+        if (!$this->isInstalled()) {
+            throw new Exception('ext-pdo_sqlite not installed. Check out php.ini file');
+        }
+        $client = new PDO('sqlite:' . $dir . $this->dbExtension);
         $this->sqlite = new SQLiteCache($client);
         $this->prefix = $prefix;
         $this->dbg_enabled = Dev::sqlDebugAllowed();
@@ -124,4 +136,14 @@ class Sqlite extends Common
             $this->num_queries++;
         }
     }
+
+    /**
+     * Checking if PDO SQLite is installed
+     *
+     * @return bool
+     */
+    private function isInstalled(): bool
+    {
+        return extension_loaded('pdo_sqlite') && class_exists('PDO');
+    }
 }