paypal error with API

[jwb2b]

error says ;

All features of Paypal API module are be include in this new module. In order to don't have any conflict, please don't use and remove PayPalAPI module.

 

i already uninstall the API module. however there is still problem with paypal module.. is there another method to remove the API module? all API setting and banner url have set. i don't know where is my problem with this module.. can anybody help me please? prestashop support team do not reply to my question for 10days. i am kind of tired to wait their answer...