Forge was working fine for me but then one day when I tried to open it, it started on a black screen and froze. Sometime it would go to the splash screen and then freeze. I haven't been able to find out why it does this. Optifine and regular Minecraft both work completely fine. I turned off the splash screen as well and waited for about and hour for it and still nothing.
log: https://pastebin.com/9dDkzU1R