When specifically did you see these issues? Forge was indeed having issues up through yesterday (Monday), but they’ve been fixed now, and there have been 0 reports of them today.
In addition, if you’re on FoundryVTT 0.8.6, that might be causing some of your issues.
You can also check your World Size: World Size Check
And your Modules: Trouble with Modules
To see if any of that is contributing.