This happened to 2nd of the store I take care of the 2nd day. I am curious if that's a general Prestashop problem now?
The problem is:
when you go to the admin page of the store and insert correct credentials - nothing happens, page is just reloaded
when you go to the admin page of the store and insert incorrect credentials - there's no error on the page, 500 server error in JS console.
Either way, you are unable to log in to the store anyway.
The resolution of the problem was restoration of half of the store's folders. I was unable to dig in and investigate which would take time, as I had to have those stores back to work.
Restoration of the following folders helped:
app
bin
classes
controllers
js
admin
tools
var
vendor
webservice
but I am just concerned now, are we being attacked by someone? Why was one of the files damaged, so the admin login was no longer working.
It happened to 2nd separate completely different store, 1st one had a problem on Thursday, 2nd one on Friday. Same problem, same fix. Can't believe it's just a coincidence.
I am looking for help.