NO CURRENCY PAYPAL presta 1.4

[yasoo]

Hy everyone

From weeks now i've got a problem with paypal on prestashop 1.4. After login on paypal by the prestashop website for payement, a blank page comes with "no currency" on the top left.

I've tried with another bowser and it seems that the payement validation page goes on again and again,  after choosing card or paypal account and click OK the same page refrech itself forever. It seems can't go further to this point always refresh this page choosing CCards or paypal acount, it can't validate the action..

I've tried to clean everything on the database and on the module but nothing better..

As anyone have got an idea from what can it be ?would be apprecited

Edited May 10, 2019 by yasoo (see edit history)