The launcher immediately crashes as soon as I try to launch a version other than the Latest Version profile.

The launcher immediately crashes as soon as I try to launch a version other than the Latest Version profile.

I tried to open 1.7.10 so I have the required files to make a modded 1.7.10 profile, but as soon as I tried to launch it, the launcher crashed, preventing the download.
It crashes MOST of the time and only sometimes works and successfully downloads.