i think this is a me thing because i did unfortunate things to myself and uninstalled java a few weeks ago because I got scared at the pop up to update it (please kill me) anyway i thought this was the number one reason minecraft wouldn't load any other version besides the ones I launched pre-idiocy (1.19.3 + optifine version) but I did redownload the latest version of java and tried to launch 1.15 (because without java installed I tried to launch 1.16.5 + 1.17.1 and this created version files without a java execution file so I cannot open these versions of minecraft anymore, period, until I figure out how to fix it) and it has the java execution file but now I am getting the error screen i have attached below. what the hell is this. I just want to play minecraft how did I do this to myself. 

*also, i'd like to mention did try to go to minecraft.net and just redownload minecraft entirely but because of the merge my account on there doesn't already own the version of minecraft theyre selling so I'd have to spend like $30. I suppose if I'm desperate enough and there's really nothing else I can do. please have mercy on me