This error and crash is related to your world for Space Engineers.

It can be caused by many things in your world. We have created this article to advise on the common occurrences.

Torch. Turning this off can make your server stable again and stop the crash happening.

Try restoring a backup

Try removing or reverting any changes that were done when the crash started happening

Starting a new map in all occurrences will fix the issue. You can then blueprint / copy over your ships / stations from the old world to the new.
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