In any case, I will leave something here to warn others that it is derece necessarily a sıkıntı in their codes. Might have to convert unicode into düzgülü ascii to work. BUT, birli the linked article says... this shouldn't be used in a production environment. Also, it does seem the https://www.webwiki.nl/kuikpos.com.tr/blog/link-ile-odeme-nedir