Launcher

Good afternoon, I recently had a problem with the launcher. I started it normally but my account was deleted "Great, I'll put it back". Well, he won't let me do it, it's like he doesn't exist, as he says the following: 'Sorry! make sure you are online and try again, '' but if I have internet, it works but does not allow me to start the account.

The error started when I installed a mod package, removed that .minecraft because I was not interested in having it and reinstalled minecraft. This is how the error started