I can't upgrade prestashop 1.7.8.6 to version 1.7.8.7

[Maxflor]

Please, I have a problem with upgrading to a higher version of prestashop. I had a hacked e-shop, the hack should have been removed by now and I would like to upgrade to the latest version, but it throws me errors.

I am attaching printscreen errors. Also, after logging out, I can't log into the backoffice again. I looked in the information about the page in the backoffice, it shows me changed and missing files, but I didn't delete anything. Does anyone have any advice on what to do with it?

I am also attaching a printscreen. Thank you very much for your willingness to advise.

[ComGrafPL]

Hacked files was removed but not replaced. In affected files you had lines of code with the issues. So files then should have been replaced. Download clean 1.7.8.6 and replace that files and then try to upgrade.

[Maxflor]

Thank you, I will try it, and do you mean all that are marked in the attachment?

[musicmaster]

Provided you didn't change files you can replace the following complete directories: classes, core, controllers, src, vendor and your admin directory. Just copy them from a fresh 1.7.8.6 installation.