Your config.php file creates a conflict with OCMod, probably caused by 1-click Opencart installers.
Solution: Edit config.php from your Opencart root installation and replace all lines of code found after:
//DIRand before:
//DBwith the following:
// DIR define('DIR_ROOT' , '/home/jinxzux56/domains/shadaloo.eu/public_html/'); define('DIR_APPLICATION' , DIR_ROOT . 'catalog/'); define('DIR_SYSTEM' , DIR_ROOT . 'system/'); define('DIR_LANGUAGE' , DIR_ROOT . 'catalog/language/'); define('DIR_TEMPLATE' , DIR_ROOT . 'catalog/view/theme/'); define('DIR_CONFIG' , DIR_ROOT . 'system/config/'); define('DIR_IMAGE' , DIR_ROOT . 'image/'); define('DIR_CACHE' , DIR_ROOT . 'system/cache/'); define('DIR_DOWNLOAD' , DIR_ROOT . 'system/download/'); define('DIR_UPLOAD' , DIR_ROOT . 'system/upload/'); define('DIR_LOGS' , DIR_ROOT . 'system/logs/'); define('DIR_MODIFICATION' , DIR_ROOT . 'system/modification/');