Error running http server

To test your product, I followed your video to create a workflow for me on an http server.
I succeeded with the command CMD-R and I log on my server. When I start the run command I get an error message.


Could you confirm the version of MDS used to save this workflow? If it is a beta version (1.7 or greater) please include the build number (available in the About menu item).

Thanks to respond me. beta version
version 1.7 build (12351)

There will be a new beta build of 1.7 available soon that will resolve this issue. A notification will be posted in the MacAdmins Slack channel once available: