In reply to AramZie3:
Sounds like a Mac specific problem, but if it isn't, check computer folder permissions and check if admin.
In reply to flashygamer002:
to prevent further computer infections: uninstalling and reinstalling java.
It has a small chance of fixing issue as well.
In reply to IFunkye:
can you give the new error?
not enough info, but I believe Lapis Warps, is either needing Kotlin, or needing a recoding of the Lapis Warps: LazyDispatcher
In reply to kaisenk:
Its not a Minecraft issue, your internet is bad. Another possible cause is the server host has a different ip than you are attempting to connect to.
In reply to mister__skellington:
possible ip problem
Here are a list of potential causes, the one that seems most likely is quark.
I have tried gdevs and liked it, Helios looks promising but haven't tried it.
In reply to Dud3brodude:
Dynamic Trees is crashing the world.
In reply to atomheathbar:
uninstall and reinstall java
In reply to andrei_blackenedsoul:
Possible fix of uninstalling and reinstalling java.
Not sure, but looks like a mod called advancements is crashing it.
In reply to djromrell:
if that doesn't work you need to uninstall and reinstall minecraft.
First backup the world. Than try loading the world onto a special launcher because that seems like the only doable option.