Settings are in .local/share/gtg , .config/gtg, and some plugins use .cache/gtg (which are standard directories, following the Freedesktop specifications).
It would be interesting to understand what caused that problem.
About the qutting problem, just to be clear, are you saying that selecting the Quit in the menu does not do anything (or ctrl+Q)?
Could you try to run
chmod -R u+rwx ~/.{local/share,config,cache}/gtg
and try running gtg again, to exclude it's a file permission problem?
Settings are in .local/share/gtg , .config/gtg, and some plugins use .cache/gtg (which are standard directories, following the Freedesktop specifications).
It would be interesting to understand what caused that problem.
About the qutting problem, just to be clear, are you saying that selecting the Quit in the menu does not do anything (or ctrl+Q)?
Could you try to run
chmod -R u+rwx ~/.{local/ share,config, cache}/ gtg
and try running gtg again, to exclude it's a file permission problem?