do someone know what this mean and how to fix it

Hi Justin,
Thanks for posting.
It seems the path file may be too long. You can try moving your project to the root of your machine C:\Unity or any name you would like to have for your Unity projects. If that does not work there are a few suggestions on this forum post please try them out and let us know if it helps.

In the meantime I will try to reproduce this locally. If I can reproduce I will open a bug ticket with the engineering team.

Best,
Seb