Disconnection and Restart-Error after Entering Cave

Hello community and developers...

i stumbled upon a very frustrating bug...
we played 14 ingame days , and then i was going to enter a cave for the first time ...
while entering i got disconnected (i was host)... and now there is a failure message when i want to resume the world...
then i tried the rollback to an earlyer day...then there was not even the failure message, there is just nothing than
server is trying to launch...
is there any chance to see this world again? was quite a nice situation in there...