WordPress admin bar broken when viewing the website logged in

Hey there! My first time posting a question here, I’ll try to be as descriptive as possible.

I’ve been building up my WP site for about 6 months now with no issues but a slight one appeared yesterday.

My WP Admin toolbar that shows up at the top of my site when logged in to WP now appears to be broken visually, and instead of the toolbar, plain text options appear without CSS it seems.

Here’s a screenshot:
https://prnt.sc/106jiz7

This section appears before the website homepage at the top instead of the regular toolbar.

Here’s a screenshot of how it looks together with the site zoomed out:
https://prnt.sc/106jknr

I’m not entirely sure what change made this happen. I’ve been having some other issues with the website appearing without the theme’s proper stylesheet up ’till this point and been trying to fix that.

After I did fix it, this toolbar issue popped up.

I’ve used Autoptimize and Cache Enabler as my optimization and cache plugins, been switching their features on and off to see if they conflict with the site.

I’ve now completely deleted these two plugins and the issue with the toolbar still persists.

I’ve also contacted my hosting provider’s support and they haven’t been that much of a help honestly, they flushed server-side cache but nothing changed.

I’ve also switched to different themes, and all of them seem to show the same broken toolbar section. I’ve also deleted my theme (Fascinate) completely and reinstalled it but even with fresh files, still the same thing.

Mind you, this only happens when viewing the site while logged in to it, as when I log out and view the site as a normal visitor, the issue isn’t occurring obviously.

All the plugins I’m currently using:
https://prnt.sc/106jsrq

I’ve cleared browser cache and checked this with multiple devices (2 laptops and 2 phones), used a different internet connection, flushed DNS – doesn’t seem like a caching issue.

I know this might be a little tricky to assist from your side but any ideas in the right direction would be much appreciated! I’ll provide any additional info if needed.

Thanks
Julius

The page I need help with: [log in to see the link]