forge 1.12.2 / crash report

the launcher got crashed and i can't do nothing. i installed forge 1.12.2 in my "mac

"and i thought something certainly was wrong, i got into java , install my forge, and closed the page, then i opened minecraft launcher, i thought was pretty good since the forge was on the minecraft launcher page , i started forge , and nothing appeared happening, i've repeated this session again and again , and the crash page went up, i was  depressed, and this is unacceptable.(i've done this session before the new 1.15 launcher went up, and everything was good, the process gone fluent , and nothing went wrong , no bugs no coding problems...such thing.)