Cannot open world from a previous snaphot

I had the same description (exception in server tick loop) but AFTER it was loaded in and while i was playing!

link

What was the previous snapshot?

Also go into options and turn render distance down to 2 and doing a backup and a load separately or do a manual backup by:

1. Copy the world folder

2. put it in the backups folder. You should also use a compressed(zipped) folder. It might say "not backed up" But you backed it up.

Thank you for your report!
However, this issue is a Duplicate of MC-144183.

If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.

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