Server Crash with bad file descriptor

Hello,
I have the problem that one of the my server crashes after a while. My other Servers are running without any problems. I think this has something to do with the error in the last line, but I am not sure.
This is the Log: https://pastebin.com/eKfSDYKm (Sorry I can’t get the text correctly formatted in the forum.)
And I did a post in the old forum: https://forum.teamspeak.com/threads/142796-Server-Crash-with-bad-file-descriptor

XLS202

Please ensure that /dev/shm is properly mounted

The output from “df -h” is:

Filesystem      Size  Used Avail Use% Mounted on
udev             32G     0   32G   0% /dev
tmpfs           6.3G   25M  6.3G   1% /run
/dev/md2        438G  258G  158G  63% /
tmpfs            32G  4.0K   32G   1% /dev/shm
tmpfs           5.0M   20K  5.0M   1% /run/lock
tmpfs            32G     0   32G   0% /sys/fs/cgroup
/dev/md1        488M   70M  392M  16% /boot
/dev/sda1       3.6T  1.7T  1.8T  50% /mnt/4TB
tmpfs           6.3G     0  6.3G   0% /run/user/1000

so I think its properly mounted. And 3 other Servers don´t have a problem.

Maybe you updated the server incompletely.
Make sure to overwrite all server files in order to update the server.

A week ago I completely deleted and reinstalled the server. So this should not be the problem.

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