transcending.it, you are my hero!

I guess you do not have Ubuntu 18.04 and your guam version is compiled with other versions.
I'll see tomorrow if I find a version of one of my backups to copy it.

I made a link from erts-9.2 to erts-10.2.4 and tested

I am sorry, but I still don't get it work on my ubuntu server.

Thanks for testing! I am not firm with ansible and got problems to follow your instructions...