Update modify.php

https://www.opengamepanel.org/forum/viewthread.php?thread_id=5853

modules/editconfigfiles/modify.php

@@ -24,7 +24,7 @@
  
 require 'modules/editconfigfiles/array_column.php';
 require 'modules/editconfigfiles/functions.php';
-require 'modules/config_games/server_config_parser.php';
+require_once 'modules/config_games/server_config_parser.php';
 require 'includes/lib_remote.php';
 
 function exec_ogp_module()
@@ -102,4 +102,4 @@ function exec_ogp_module()
         echo '</form>';
         echo '<div><a href="?m=editconfigfiles&home_id='. (int)$server_home['home_id'].'">'.get_lang('go_back').'</a></div>';
     }
-}
+}