website not loading - 500 error

Hello, my website is hosted on Hostinger and it is having issues loading since late november, it gives me a critical error, it was working fine and then I started getting a hostinger generated wordpress error on one of the theme plugins, now it won't load at all. It does have backups but I am needing someone familiar with hostinger platform to have a look at the issue and get it to start displaying the website once again please.