This is a configuration issue with XAMPP. Unfortunately we can't help you with that. Usually the solution is to remove the .htaccess, php.ini and .user.ini files from the site's root and the administrator directory and then clear your browser's cache (that's an important step). Sometimes you need to completely reinstall XAMPP. But in any case this is something not related to what our software does, so we can't provide help :(
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!