1-Click Upgrade - Rollback made our page inaccessible. Need help...

[JosNem]

Little disclaimer: Our IT guy sadly passed away a while ago. He set up our PS shop and took care of all things web-related.
I'm a layman but I have to take care of our system for the time being...

So before Christmas I had to install a new module, but this required me to upgrade my PS version...
I upgraded using the "1-click upgrade"-module which was already installed.
I'm usually quite cautious with these things, but since 1CU offers to back up your data before the upgrade, I figured it'd be alright...

The upgrade itself worked, but some lines of texts were shifted and the shop site looked pretty wonky.
So I immediately did a rollback to the backup 1-click upgrade had made.
No error messages or anything, but now both the shop page and backend access are completely inaccessible!

Took me a while, but eventually I figured out that our domain provider should have backups - which they did...
Thing is, we're a pretty old company and there are a ton of subdomains etc. making everything quite confusing.
There were 3 database backups in total and because of confusuion with the naming convention I mistakenly rolled back the wrong website.
By the time I'd noticed my mistake (this all happened around Christmas break) our provider didn't have the actually relevant backup anymore.

Our shop+backend are still inaccessible. I do have access to the relevant FTP files, but no idea how much that helps.
Is there any way to fix this? Does PS maybe do its own backups that I could maybe access via FTP?

This one's on me, but I need help guys.

[ComGrafPL]

How the situation is now? BO works but with wrong db or all is offline? PS doesnt have any backup. Only rollback on 1-click.  So wrong db was restored for store?

[JBW]

10 hours ago, ComGrafPL said:

PS doesnt have any backup. Only rollback on 1-click.

1-clickupgrade stores its backup on the server, can be downloaded by FTP and restored manually (files + DB). But first thing to try would be to actiate debug mode and check whats wrong with the actual shop.

[JosNem]

On 1/15/2025 at 9:58 AM, ComGrafPL said:

How the situation is now? BO works but with wrong db or all is offline? PS doesnt have any backup. Only rollback on 1-click.  So wrong db was restored for store?

Hey, thanks for answering.

If BO means backend, then yes, that's also offline sadly.
The 2 DBs I restored had nothing to do with the actual website, I'm pretty sure. I think they might've been set up for testing purposes.

The crash happened when I rolled back to the 1-click-backup, but since there were no error messages, I assume that's the data the website is currently (not) working with.

[JosNem]

14 hours ago, JBW said:

But first thing to try would be to actiate debug mode and check whats wrong with the actual shop.

Is that possible without backend access?

[JBW]

1 hour ago, JosNem said:

Is that possible without backend access?

Sure, set _PS_MODE_DEV_ to true in file config\defines.inc.php

[JosNem]

1 hour ago, JBW said:

Sure, set _PS_MODE_DEV_ to true in file config\defines.inc.php

Dumb questions only from me, but where can I view the debug logs?

And how would I need to change this line of code?:

/* Debug only */ if (!defined('_PS_MODE_DEV_')) { define('_PS_MODE_DEV_', false); }

I was expecting a regular bool, like:

_PS_MODE_DEV_ = false;