Problem opening the project

[akiezel]

Hello there! 

I am writing witha a hope for help, currently I am working on a project in my work, and after yesterday I cannot open the design anmymore! I never had any problems similar to this one, and I am confused what happened. 
I am working on newest Fusion 360 version on Windows 10.
I might have an idea what could happen (other projects do open without a problem)- yesterday I added 2 files from thingiverse (2 connectors, as I didn't want to model them myself at this stage yet) but I might uploaded one and used it in this design, but I thionk second didn't upload properly (I uploaded the 2nd one properly to my project today morning but it didn't help).

I am not sure if I can share my screenshots here, but I can paste a message:
when I try to open:" We cannot perform this operation.
Fusion isn't able to open tis design at the moment. Please try again later or contact us." 

when I try to download offline catche: *screenshot*

text in error pop-up window is blank (so only red "X" icon error with no text). 

[Phil.E]

The error message indicates you may have deleted a reference.

Are any of the related designs in the trash can (found in the web view of your data)

[Phil.E]

Can you please provide diagnostic logs?

1. Open Fusion on the machine where the design was made, go to Help
2. Support and Diagnostics
3. Diagnostic log files

Thanks,