@alberthrocks woo! Well, somewhat lol. I'm going to guess Linux only accepts the forward-slash, and not the back-slash, for file path's? I believe it doesn't matter for Windows, so if the different slashes are the problem, that's an easy fix
That might be why it can't find the settings file (because Application.StartupPath seems to be working fine). The other errors seem to be from the editor (it's called FastColoredTextBox). If I switch over to ICSharpCode's editor by adding the entire project, maybe that'll help fix it? (It is written in C# as well.)
Ahh, so the initial error has nothing to do with the console output? In that case, go ahead.
If not, don't jump to switching code editors!