Costumer Service, back office, blank page?

[mpbokk]

Hi.

 

So.... I have no clue how to fix this, so hopefully you guys can help!

 

I just downloaded prestashop 1.7.2.2, since my last server crashed.

 

Now, I had to configure the customer service page, an add an IMAP mail for it to work (right now I am using Gmail, since I am having problems, making the e-mail function work with many other mail servers).

 

ANYWAY, I added the mail, pressed save, and then it took forever to save.

After about 1 minute, it just went to blank page!?

 

And everytime I try to go into the customer service page, in my back office, it just goes to a blank page.

 

Debug mode doesn't show anything, and my log says nothing.

 

Can I do anything to fix this?

Can I reinstall JUST that module? and how?

Can I clean the information anywhere? MySQL, and how?

 

other than that, the shop works fine.