Error when entering character

I play normally for a few hours, but after a while the game closes by itself, it doesn't return any error message, it just closes.
I close the launcher, open it again, open the game, select the server, select the character and when it will load, the game closes instantly. So far the only solution I found was to restart the computer or repair the game files through the launcher.
The problem with restarting the computer is the waste of time it generates. The problem with resetting the launcher is that my settings are being reset.