Project not loading with error message.

I have a problem with loading a project. I receive the error message seen in the attached image, everything was fine yesterday. All other projects are loading except this one. The only thing I see is the loading animation. I tried the new interaction components like checkbox and switch to see how they work. But after that I removed them from my project. After that I worked on the project a lot and there were no issues at all.
What should be the problem?

Can you DM me your project id?

Sure, I sent it to you.