Titominecraft12

So i just recenlty switched Java versions to the correct one, but I am still having the issue of my modpack opening and closing back to the launcher. This time it does last longer before it goes back, but it still goes back in the end. Here is the log. https://paste.ubuntu.com/p/XBZ2TN955P/

I have installed it and tried to run it, but I still run into the same problem

Should I uninstall the other versions of Java I have?

My friend is having a problem playing a modpack with me. Whenever he tries to run the pack, the launcher disappears and then reappears. I have tried differnet java versions and trying to up the ram, but it doesn't work. I have the paste bin logs here. https://paste.ubuntu.com/p/HXwxbTKPrg/