Hmm, I clicked on the 'log file' and it directed me to a installation log. It said Message Types and I clicked on 'errors' and it showed all the errors. I screenshotted the errors.
I'm having a SUPER BIG problem with my paint.net! I tried to update my paint.net because I didn't update it for months. But I couldn't find a way. So I uninstalled paint.net and installed it again, but this error came up!