It could be a specific module or plugin leading to the error. I would recommend re-installing the Prestashop core files when you haven’t already. When I install prestashop applying Quickinstall (cpanel module) the admin panel url is very Bizarre "admin-1380902282" Get World wide web hosting that grows with your business. https://pr1bookmarks.com/story21528108/how-prestashop-documentation-can-save-you-time-stress-and-money