UE4 crashes when i try to open level

Hello,
I’ve been working last week on a project, it’s not a game just a small room for architectural visualization in VR, so it’s just lights and materials no animation.

I’m trying to open it now and it crashes everytime i try to open the level I’ve been working on.

First it didn’t give me any error, just crashing when i try to open, then i tried to open it in a new empty project, it gives me these load errors:

/Engine/BasicShapes/Cylinder : Can't find file for asset. /Game/Geometry/Room/Materials/M_Emissive
Failed to load /Game/Geometry/Room/Materials/M_Emissive.M_Emissive Referenced by Cylinder

These cylinders I used from the assets already in the editor so I don’t know what the problem is.

This is the log in my saved folder:
link text

Please let me know if I need to provide more information. Any help would be appreciated.

Hello,

We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1410408-unreal-engine-bug-submission-form

Thanks