Fix if $hooks not defined

system/libs/pot/OTS.php

@@ -311,9 +311,18 @@ class POT
  */
 	public function loadClass($class)
 	{
-		if( preg_match('/^(I|E_)?OTS_/', $class) > 0)
-		{
-			include_once($this->path . $class . '.php');
+		if( preg_match('/^(I|E_)?OTS_/', $class) > 0) {
+			global $hooks;
+			$include = $this->path . $class . '.php';
+
+			if (isset($hooks)) {
+				$args = ['include' => $include, 'class' => $class];
+				$hooks->triggerFilter(HOOK_FILTER_POT, $args);
+
+				$include = $args['include'];
+			}
+
+			include_once($include);
 		}
 	}
 

system/src/global.php

@@ -102,6 +102,7 @@ define('HOOK_FILTER_ROUTES', ++$i);
 define('HOOK_FILTER_TWIG_DISPLAY', ++$i);
 define('HOOK_FILTER_TWIG_RENDER', ++$i);
 define('HOOK_FILTER_THEME_FOOTER', ++$i);
+define('HOOK_FILTER_POT', ++$i);
 
 const HOOK_FIRST = HOOK_INIT;
 define('HOOK_LAST', $i);