Server on Raspberry 3 crashes exactly every 2 minutes

Hi I encountered the problem that on my Raspberry 3 on stretch the server restarts exactly every 2 minutes.
Any idea how to prevent this?

Regards
Benjamin

Dec 7 14:41:31 fhem vhusbdarm[1557]: >>> Starting VirtualHere USB Server v4.0.7 (Built: Nov 25 2019, 23:00:51)<<<
Dec 7 14:41:31 fhem vhusbdarm[1557]: Using configuration /var/lib/vhusb/config.ini
Dec 7 14:41:31 fhem vhusbdarm[1558]: Server licensed to=unlicensed max_devices=1
Dec 7 14:41:31 fhem vhusbdarm[1558]: Using large URB's
Dec 7 14:41:31 fhem vhusbdarm[1558]: Listening on all network interfaces at TCP port 7575
Dec 7 14:41:31 fhem vhusbdarm[1558]: Found Full speed device [...]
Dec 7 14:41:52 fhem vhusbdarm[1558]: 192.168.1.100 connected as connection 1
Dec 7 14:43:31 fhem vhusbdarm[1580]: >>> Starting VirtualHere USB Server v4.0.7 (Built: Nov 25 2019, 23:00:51)<<<
Dec 7 14:43:31 fhem vhusbdarm[1580]: Using configuration /var/lib/vhusb/config.ini
Dec 7 14:43:32 fhem vhusbdarm[1581]: Server licensed to=unlicensed max_devices=1
Dec 7 14:43:32 fhem vhusbdarm[1581]: Using large URB's
Dec 7 14:43:32 fhem vhusbdarm[1581]: Listening on all network interfaces at TCP port 7575
Dec 7 14:43:32 fhem vhusbdarm[1581]: Found Full speed device [...]
Dec 7 14:43:53 fhem vhusbdarm[1581]: 192.168.1.100 connected as connection 1
Dec 7 14:45:32 fhem vhusbdarm[1601]: >>> Starting VirtualHere USB Server v4.0.7 (Built: Nov 25 2019, 23:00:51)<<<
Dec 7 14:45:32 fhem vhusbdarm[1601]: Using configuration /var/lib/vhusb/config.ini
Dec 7 14:45:32 fhem vhusbdarm[1602]: Server licensed to=unlicensed max_devices=1
Dec 7 14:45:32 fhem vhusbdarm[1602]: Using large URB's
Dec 7 14:45:32 fhem vhusbdarm[1602]: Listening on all network interfaces at TCP port 7575
Dec 7 14:45:32 fhem vhusbdarm[1602]: Found Full speed device [...]
Dec 7 14:45:54 fhem vhusbdarm[1602]: 192.168.1.100 connected as connection 1
Dec 7 14:47:32 fhem vhusbdarm[1638]: >>> Starting VirtualHere USB Server v4.0.7 (Built: Nov 25 2019, 23:00:51)<<<