Substance Painter "Read only" access imported model fail.

Sorry, but this is urgent. Anyone who can help me quickly would be much appriciated.

I should still have acces to SP even though I am a recent grad now.

My SP file is labelled "read only". I have tried importing the sample "meet mat", and saving the file. Just like it suggested in this forum:Solved: Read Only - Adobe Support Community - 13246905

Once I do this, then "read only" label dissapears and I can access the buttons normally.

BUT, I still cannot import my own model. When I try to I reiceve these error messages:

1.

[Post Effects Document] Post effects have been updated from version 6 to version 7.

2.

[Scene 3D] Unable to open file "file://lcc-render.arts.local/2022%20Production%20MA%203D%20Computer%20Animation/Users/18014845/GIG-SFS%20Proj/Texturing/Content/Spotlight/Spotlight%20HP.obj".

3.

[Scene 3D] Failed to load 3D scene.
Unable to open file "file://lcc-render.arts.local/2022%20Production%20MA%203D%20Computer%20Animation/Users/18014845/GIG-SFS%20Proj/Texturing/Content/Spotlight/Spotlight%20HP.obj".

Any ideas?