I can not get the 1.7.8 MCreator for Windows 64 bit program to start running

I was going to upgrade my MCreator to 1.7.8, however, when it tried to install I came across "decompile" I probably got inpatient and stopped the system from running. When I tried reinstalling it, it looked like it was working but while the installation to the computer it had at least 7-14 errors pop up. I clicked ignore on all of them however. Once it started the program up and running it said It was a virus. The program was stuck because of the ignored errors. The errors told me to abort but I ignored it. Now, idk what to do because the program is stuck on a random event that is running even though its stuck. Can anyone help? Btw if I just reinstall it again it will pop up about 7-14 errors again then it will stop running. It does not even say an error when the program expectantly stopped running.