Messed up my project! Recommended fixes?

Hi guys!

Please I need help fixing my project. I’m using windows and I was trying to load a project I was working on by clicking on one of the scenes in the recent files list. The project worked but I realized that some files were not loaded and materials were missing. I exited and clicked the original project file but unity started crashing after loading.

Upon inspection of the project folders, I realized that I had a folder named ASSETS inside the unity assets folder and It seemed to be causing the crash so I renamed it and the project started loading.

The inEditor folder list now includes the unity library folder and unity disables the loading of some files stating that they caused the asset importer to crash the last time.

How do I fix this? My character variations rely on one mesh and the mesh isn’t loaded. I tried dragging the file from explorer to unity but it doesn’t work. I’m guessing because this file is already in the folder loaded into the editor.

Please how do I fix the problems.

Right click on the asset and choose “Reimport”.

Thanks.
The asset wasn’t showing up. Only the blend1 file was. I opened the file from blender and saved it. It still didn’t show up till I reimported the entire folder where the model was located.

My prefabbed characters have missing references due to the file loading problem. I’ve tried clicking revert but nothing happened. I don’t mind recreating them.

The only other problem is that the level gameObject (It’s just the mesh, nothing added) is not showing up in the scene. I’ll just drag another mesh to the scene. I’m just wondering why the name is highlighted in red font in the hierarchy view. What does this mean? There’s no info in the debug log.