20 minutes ago, juanrojas said:I had already seen this error in the past, but I don't remember the solution, make a copy of the site and update with a previous version of the module to see if it works for you
This is a copy of the website (I didn't want to risk on actual website). So I can confidently "play" on it.
The problem when trying an older version of the 1-Click upgrade module is that when it makes it's check list it requires the latest version of the module so I can't upgrade, even if all other requirements (including maintenance mode) are green.
When working with older module version I tried to modify the code in UpgradeButtonBlock.php (eliminating line 139 and 148) so that it will not check for latest version of module but it doesn't work, it still wants to upgrade module before all checklist is green.
I have to mention I am not a programmer and the hack presented earlier was found on another forum, but it was related to an earlier version of prestashop (1.6 I think). Maybe I am doing it wrong and if executed correctly would work.