Try to run Mcreator Client, crashes on world opening or new world creation

Whenever I attempt to load the MCreator built client, it fails to run. Relatively new to MCreator, first mod, and I'm stuck with this issue. I looked in the console to find loads of errors the instant I clicked the button. I haven't had issues with MCreator until today, and it hasn't been working all day. I didn't even touch MCreator for the past week, so I have no idea what made the bug happen. I don't know if this is the right place for this, but I thought it fair to go here. New user just trying to figure out why the program refuses to let me actually play.

Edit: Console just after I click "Create New World"
https://pastebin.com/EbaEPr6C