Could you kindly add collapse.cat ?

I have

Maybe the problem is this:

https://lemmy.ml/post/79861

Are trying to install Lemmy (executing Ansible) from the server where Lemmy will been working?

Really? I don’t think so… There are some exceptions, like the use of Linux on secondary schools (12-18 years old): #Lincat http://linkat.xtec.cat/portal/index.php and others