Backend is unavailable

[abelic]

After starting app with
docker pull webdb/app &&
docker rm -f $(docker ps -a -q --filter ancestor=webdb/app) webdb || echo &&
docker run --name webdb -d
--restart=always
--add-host="host.docker.internal:host-gateway"
-v $HOME/.webdb:/usr/src/app/static/version
-p 127.0.0.1:22071:22071 webdb/app

and adding server I'm getting message :
Backend is unavailable

[WebDB-App]

Hello,

Can you give me the tail of docker logs -n 20 webdb please

[aleluff]

Can you tell me if thé user you use yo connect to the dB has the right to run show global variables

[aleluff]

I've just increase logging, can you re-run

docker pull webdb/app &&
docker rm -f $(docker ps -a -q --filter ancestor=webdb/app) webdb || echo &&
docker run --name webdb -d
--restart=always
--add-host="host.docker.internal:host-gateway"
-v $HOME/.webdb:/usr/src/app/static/version
-p 127.0.0.1:22071:22071 webdb/app

and tell me the error you get please