Error in modules when ativated paypal

[Carrinhos3b]

Hello,

 

I am using prestashop 1.7 and ativated paypal module (probably in a wrong form, despite the credentials where accepted, because of what this ativation caused). Since I made it, an error had produced. I already disabled the module of paypal, but the error remains: when a costumer tries to buy something, instead of the methods of payment appear 500 server error.

 

I looked in cpanel errors, and there shows:

[Wed Jul 05 14:58:30.561561 2017] [:error] [pid 101730] [client 5.249.152.218:43554] File does not exist: /home/carrinho/public_html/modules/up.php

 

Please, someone can tell me what to do to solution that? (in a simple language, because I'm totally newbie in this things)

 

Very thanks