Problem step payment chekout process

[kiakaha]

Hi there i have in laste servel days problem, when i added some article to cart i proceed to check out, i have 2 step, step one information is automaticly approved when the user is logged, 

step two and the problem is here payment i choose one of payment method that i have after click on paye button the page has juste refresh and since 2 days i cant complete any pursache any help PLZ
 I have active the debug mode and try to catch the error but nothing appeare like error ot juste reload the page, i use pay on delevery mode and i try defferente why of payement method same probleme, i use prestashop 1.7.7.0 version, stell have same problem