Error: The employee does not exist, or the password provided is incorrect.

[Albatrosss]

Hi.
I have successfully updated Prestashop from 1.6.0.9 to 1.7.6.8. So far everything is working fine. I have only one problem. I cannot log into the back office.

More precisely, When I try to login with the link https://x.com/admin The employee does not exist, or the password provided is incorrect. gives his error.

But when I change the link to http://x.com/admin, I can successfully login to the back office. I could not find what's wrong. It doesn't give any error. How can I solve the problem?

Thanks.

 

Edit:

I forgot to write something. I can login when I change the link to http://x.com/admin. But I get an invalid token error. I can login after confirming it.

Edited October 28, 2020 by Albatrosss (see edit history)