xibo redirect web error unexpected error, please contact support

Hello,

I got error from Xibo docker when I access to xibo website and after that 3-4 minutes it redirect to logout page and show error
“unexpected error, please contact support”

when I checked docker-compose logs , it seems like does not show any error for me.

could you please advise ?

below is docker-compose file and config.env

version: "2.1"

services:
cms-xmr:
image: xibosignage/xibo-xmr:0.9
ports:
- "9505:9505"
restart: always
env_file: config.env
mem_limit: 2G
cms-web:
image: xibosignage/xibo-cms:release-3.1.4
volumes:
- "./shared/cms/custom:/var/www/cms/custom:Z"
- "./shared/backup:/var/www/backup:Z"
- "./shared/cms/web/theme/custom:/var/www/cms/web/theme/custom:Z"
- "./shared/cms/library:/var/www/cms/library:Z"
- "./shared/cms/web/userscripts:/var/www/cms/web/userscripts:Z"
- "./shared/cms/ca-certs:/var/www/cms/ca-certs:Z"
restart: always
links:
- cms-xmr:50001
environment:
- XMR_HOST=cms-xmr
- CMS_USE_MEMCACHED=true
- MEMCACHED_HOST=cms-memcached
ports:
- "80:80"
env_file: config.env
mem_limit: 2G
cms-memcached:
image: memcached:alpine
command: memcached -m 256
restart: always
mem_limit: 512M
cms-quickchart:
image: ianw/quickchart
restart: always