All events are being deleted after restarting docker

[serveit]

Whenever I stop and start the Zoneminder Docker, I can't view the events that were recorded before stopping. It shows a black screen with an X in the middle and this error message.
Recording path: /var/cache/zoneminder/events

Error Message: The video could not be loaded, either because the server or network failed or because the format is not supported.

I'm using Ubuntu 20.04 LTS & Nginx.
I have given www-data permission.

Docker: dlandon/zoneminder

[burger]

Post the docker command or docker-compose.yml

I'd advise using docker-compose.yml

(this should be moved to docker forum)