Why am getting this error folks,

Europe/Madrid] PHP Fatal error:  Uncaught TypeError: Argument 1 passed to OW_ErrorManager::exceptionHandler() must be an instance of Exception, instance of ArgumentCountError given in /home/test/public_html/ow_core/error_manager.php:235
Stack trace:
#0 [internal function]: OW_ErrorManager->exceptionHandler(Object(ArgumentCountError))
#1 {main}
  thrown in /home/test/public_html/ow_core/error_manager.php on line 235