The biggest issue is that when I try to load with the universal launcher, it loads a little (as shown in attachment C) but it then closes automatically without a crash report. Running out of ideas captain
then change the -Xmx1G to a higher value at least like 2 or 3G this is the max memory you are giving to the server then save that file as serverStart.bat file and use that to start the server. serverStart can be anything you want to call it just make sure it has .bat at the end and you save it as all file types. Make sure to use notepad not word or any other text editor that will mess with the text.
Also if this still does not work please provide a crash report or fml-latest log so we can see what exactly the problem is.