The lacher does not open from the crash app and I'm tired of reworking all the time

Look the lacuher does not open and when it opens buga and does not open the game already tried to resitalar back to the previous version respond me I'm getting discouraged to build wanted to play in the original lacuher until the multimc works more the original lacuher not what is happening...
I deleted the .minecraft to see if it worked again I backed up the textures maps etc.