Read-only error messages (i can't download, i can't edit files, etc.)

I have a problem with my laptop. It runs endless os, witch i kinda like, but now i have some big problems with it, and i can’t use the laptop, i can’t download things, i can’t install apps, i can’t uninstall apps, edit files, etc…

Is there something i can do to solve the problem without using a usb to re-install it? I don’t have acces to another pc/laptop to create the usb with endless os.

Is there any method to format it or re-install it, or do something else to solve the problem, without using a usb to re-install it?

Sounds like filesystem corruption.

Please run the following command in a Terminal window:

eos-diagnostics /tmp/diagnostic.txt

Then attach the file /tmp/diagnostic.txt here.