API error docker run?

This keeps creeping into my API

docker: Error response from daemon: Conflict. The name "/campaign-730568-Th90FS56CGfxjsEhHHh5bQ" is already in use by container ad92966160d2eb1b13d13084f4119c26ea9234226f48fb5f92496d70702ff808. You have to remove (or rename) that container to be able to reuse that name..
See 'docker run --help'.

Is it something in one of my scripts causing a conflict?

In my experience, this just happens sometimes. Usually for me, it's while I'm working on a script and saving quickly and repeatedly. Exit out of your whole browser, wait a few minutes and it should resolve itself. This has at least been my experience so far.

Resaving any script resets the API - it happens while I am not using the campaign. Just used it last night, the error was there again this evening. I just restarted the APi and all was fine. Again.

I'm fairly certain this is a server issue not directly caused by the content of the script itself.

Interesting. I didn't know R20 is using Docker containers as their VM for campaigns.
I use Docker all the time in my development for testing deployments. Anyway, there are times that a Docker container hangs and does not exit correctly. 
I have a cron job running every 5 minutes that checks for hung containers and kills them. 
Docker overall is a great technology, but it does have some issues from time to time.