Crash when selecting character

[allahthevenerable]

Each time i try to log in to one of my characters I get a variant of the following crash:

haven.Message$EOF: Required 9 bytes, got only 5
at haven.Message.rensure(Message.java:91)
at haven.Message.bytes(Message.java:163)
at haven.OCache.resattr(OCache.java:646)
at haven.OCache.parse(OCache.java:689)
at haven.OCache.receive(OCache.java:812)
at haven.Session$RWorker.getobjdata(Session.java:216)
at haven.Session$RWorker.run(Session.java:400)


The crash has varied from 1 to 9 bytes so far.
I noticed that is also gave me this crash when i enter a certain house on our group claim, could it be caused by the house or its contents? I am the only one in the group currently having the issue, thanks in advance.

Edit: just to clarify, I am getting this error on both the default client and ender.

[allahthevenerable]

Update: managed to log in without issue. Went for a treck in the wilderness, got targeted by a boar, crashed.
Decided to just pick myself up and continue with a quest i had, except i crashed in front of a bear. As soon as i log in, i'm targeted by the bear and immediately crash again.
Well fuck me i guess.
Edit: the crash log

haven.Message$EOF: Required 1 bytes, got only 0
at haven.Message.rensure(Message.java:91)
at haven.Message.int8(Message.java:106)
at haven.Message.uint8(Message.java:110)
at haven.OCache.icon(OCache.java:626)
at haven.OCache.parse(OCache.java:687)
at haven.OCache.receive(OCache.java:812)
at haven.Session$RWorker.getobjdata(Session.java:216)
at haven.Session$RWorker.run(Session.java:400)

[allahthevenerable]

Reinstalled both haven and java 11 and briefly got it working again, managed to launch ender client a total of once tonight, now no longer working again.
Current crash:

haven.Message$EOF: Required 1 bytes, got only 0
at haven.Message.rensure(Message.java:91)
at haven.Message.int8(Message.java:106)
at haven.Message.uint8(Message.java:110)
at haven.OCache.cres(OCache.java:262)
at haven.OCache.parse(OCache.java:678)
at haven.OCache.receive(OCache.java:835)
at haven.Session$RWorker.getobjdata(Session.java:287)
at haven.Session$RWorker.run(Session.java:471)

At a total loss here, any ideas would be appreciated.