fixed decoder

include/renderer.php

@@ -426,7 +426,11 @@ class Renderer {
     }
     
     protected function decode(string $toDecode, string $salt): string {
+        try {
             return $toDecode ? openssl_decrypt($toDecode, 'aes-256-cbc', $this->encryptionKey, 0, $salt) : '';
+        } catch (exception $e) {
+            return '';
+        }
     }