This crash is random. Most of the time it happens when someone speaks on a channel, but it can also happen when opening TeamSpeak. On rare occasions it does not crash, but it is difficult.
This error happens both on real hardware and on a virtual machine. I am using TeamSpeak 3 3.5.6 on Debian 10.8 32-bit with LXDE interface.
Here is the log file and the crashdump: https://drive.google.com/file/d/1DXiATbbADpw1okUqaehg5h-3WU-TglSl/view?usp=sharing