fixup! replace preg_replace with preg_replace_callback /e is not supported starting with php 7.0

main.php

@@ -39,8 +39,8 @@ while(true) {
                     $regex = '#([0-9]{1,3})#';
                     $callback = function ($matches) {
                         return $matches[0]+1;
-                    }
+                    };
-                    $newName = preg_replace($regex, $callback, $group['channel_name']);
+                    $newName = preg_replace_callback($regex, $callback, $group['channel_name']);
                     createChannel($server, $newName, $sub, $options);
                 }
             }