Jibri stop stremaing

jibri stop streaming after 90 min.
ffmpeg.call() [alsa @ 0x5607c9e8b140] ALSA buffer xrun.

kern.log
Out of memory: Kill process 31146 (ffmpeg) score 867 or sacrifice child

ubuntu 18.04
memory: 7.8G
google chrome: 83.0.4103.97