Hello,
I just installed (thank God on dev store) 1.7.6.7 version precisely file by file verify what I modified and what not, but if FO is okay and everything is working, my BO is totally in chaos:
I just clicked after upgrade like always to empty cache, to clean all the data - nothing is working.
Thanks for opening this issue! We will help you to keep its state consistent
Hi,
I just installed (thank God on dev store) 1.7.6.7 version precisely file by file verify
Do you mean you did not use the auto-upgrade module ?
What you describe looks like CSS/JS issue, possibly from cache. Any error in the console when browsing the pages ?
No, I just did the auto-upgrade, as usual :)
Just verified before upgrade all list of modified files to be sure that any of my modification get lost.
Even have log list if you want to see it.
Nothing is like really CSS/JS scripts, but I did the clean :/
Everything I have (only marked some details):
Screens are:

Hi @krupers
Can you check your php compatibility please : https://devdocs.prestashop.com/1.7/basics/installation/system-requirements/#php-compatibility-chart
Oh gosh... You are amazing, I forgot about it.
Od production site I have 7.2.31 - on dev I just switched unintentionally to 7.4.7....
Now everything is working I think!
Thank you!!!
Most helpful comment
Hi @krupers
Can you check your php compatibility please : https://devdocs.prestashop.com/1.7/basics/installation/system-requirements/#php-compatibility-chart