These are just warnings from apt-get about the expired key of the Nokia repository, they no longer seem to maintain. I do not expect them to ever fix this, which leads to disabling the Nokia repository as the only solution to get rid of this warning.

If these are the only output of the commands then please try This would simulate the autoremove without actually removing anything, just for the terminal output to look at it.

Edit: If copy and paste is problematic redirect the output to a file and attach the file to the next post.