Hi Ramiz,

Thank you for getting in touch with us. My name is John, and I'm happy to assist you today.

I'm sorry about the inconvenience this has caused. That's a strange issue we didn't encounter before. It might be a database update issue that should have been performed automatically in the background. Would you please navigate to System Status by pressing the ellipsis ⋮ button at the top right corner, then review if that page warns you about anything? Even if there's no apparent issue, pressing the Update Database  button might help. The Clear Groups button might be also helpful in some cases.

Since caching and optimization WordPress plugins can also cache the database and its queries, it might help if you try to empty all caches in case you have a plugin like W3 Total Cache, WP Super Cache, WP Rocket, etc.

We can also look into this issue more deeply if you could set up a temporary WP admin access for us. 

Thank you, Ramiz! I was able to locate the issue. The SEO plugin you're using loads its stylesheets on pages where it shouldn't. The good news is that I've managed to solve the problem from our side. Your admin area should be fine now. 

Please note, you might need to empty the caches of your web browser if the project list still appears to be broken.