diff --git a/bt/announce.php b/bt/announce.php
index bc0fe67aa..93f60fd66 100644
--- a/bt/announce.php
+++ b/bt/announce.php
@@ -46,14 +46,14 @@ $input_vars_num = ['port', 'uploaded', 'downloaded', 'left', 'numwant', 'compact
 // Init received data
 // String
 foreach ($input_vars_str as $var_name) {
-    ${$var_name} = isset($_GET[$var_name]) ? (string)$_GET[$var_name] : null;
+    $$var_name = isset($_GET[$var_name]) ? (string)$_GET[$var_name] : null;
 }
 // Numeric
 foreach ($input_vars_num as $var_name) {
-    ${$var_name} = isset($_GET[$var_name]) ? (float)$_GET[$var_name] : null;
+    $$var_name = isset($_GET[$var_name]) ? (float)$_GET[$var_name] : null;
 }
 // Passkey
-$passkey = ${$passkey_key} ?? null;
+$passkey = $$passkey_key ?? null;
 
 // Verify request
 // Required params (info_hash, peer_id, port, uploaded, downloaded, left, passkey)
@@ -339,7 +339,7 @@ if (($is_hybrid && $hybrid_tor_update) || !$is_hybrid) { // Update statistics on
 
 // Exit if stopped
 if ($stopped) {
-    silent_exit();
+    silent_exit('Cache will be reset within 30 seconds');
 }
 
 // Store peer info in cache
diff --git a/bt/includes/init_tr.php b/bt/includes/init_tr.php
index e05dfab01..fbf7a1d24 100644
--- a/bt/includes/init_tr.php
+++ b/bt/includes/init_tr.php
@@ -21,17 +21,15 @@ if ($bb_cfg['tracker']['bt_off']) {
 //
 // Functions
 //
-function silent_exit()
+function silent_exit($msg = '')
 {
-    ob_end_clean();
+    echo \SandFox\Bencode\Bencode::encode(['warning message' => str_compact($msg)]);
 
     exit;
 }
 
 function error_exit($msg = '')
 {
-    silent_exit();
-
     echo \SandFox\Bencode\Bencode::encode(['failure reason' => str_compact($msg)]);
 
     exit;