Unable to launch FIFA 23 + "Temporarily Lost Connection" error

So for anyone who stumbles upon this post, experiencing similar issues, this is what I had to do in order to resolve the problems.

1. "Temporarily Lost Connection" error was caused by malfunctioning redistributable C++ files. Upon further investigation I found out that I could neither reinstall nor uninstall them, they must have been corrupted or something which meant they could not be repaired, even manually.

I tried to follow this guide [https://techcult.com/how-to-reinstall-microsoft-visual-c-redistributable], but for reasons stated above that didn't work for me.

In order to fix that I unfortunately had to reinstall the whole operating system (the option to reinstall keeping my files was enough, thank God) and uninstall the redistributable files and install them again.

2. The issue with FIFA 23 crashing at setting selection screen was far easier to resolve.

I just had to delete my current settings, that's all. After that I simply had to set up them again and the game worked fine.

Hopefully someone finds this useful.