This error started suddenly. The application was working fine for almost 2 years.
please see the docker ps
output below
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
559d4c54be0b xibosignage/xibo-cms:release_1.8.2 "/entrypoint.sh" 8 days ago Up 9 minutes 0.0.0.0:80->80/tcp xibo_cms-web_1
ba3977b8b3db xibosignage/xibo-xmr:release_1.8.2 "/entrypoint.sh" 8 days ago Up 9 minutes 0.0.0.0:9505->9505/tcp, 50001/tcp xibo_cms-xmr_1
e94e6379c85a mysql:5.6 "docker-entrypoint..." 8 days ago Up 9 minutes 3306/tcp xibo_cms-db_1