Diagnosis

How to check the error message from web browser?

If you are using Google Chrome, you can press F12 to activate Chrome developer tools. The most frequently used tabs are Network and Console

You can see the web-server version on the console

How to clean browser cache?

https://www.lifewire.com/how-to-clear-cache-2617980

How to turn on incognito mode in my browser?

https://www.lifewire.com/browsing-incognito-445990

How to get log from backend-server/room-server/web-server/gateway?

# docker-compose mode

cd /data/apitable
sudo docker compose logs --tail 256 -f backend-server
sudo docker compose logs --tail 256 -f room-server
sudo docker compose logs --tail 256 -f web-server
sudo docker compose logs --tail 256 -f gateway

===

# kubernetes ops-manager mode

## list pod in the namespace
kubectl --kubeconfig /data/apitable/app/config-k8s/kubeconfig -n apitable-app get pod

## replace the last argument with pod name you get from last command
kubectl --kubeconfig /data/apitable/app/config-k8s/kubeconfig -n apitable-app logs -f --tail=500 backend-server-7555b648dd-kdp66
kubectl --kubeconfig /data/apitable/app/config-k8s/kubeconfig -n apitable-app logs -f --tail=500 room-server-689647bc97-7h2dt
kubectl --kubeconfig /data/apitable/app/config-k8s/kubeconfig -n apitable-app logs -f --tail=500 web-server-77b558f686-trs27
kubectl --kubeconfig /data/apitable/app/config-k8s/kubeconfig -n apitable-app logs -f --tail=500 openresty-7d44d58796-tm84t