DKIM & SPF Manager not working

I have a few domains that I am trying to add the DKIM to, I know I can add them manually but I would like to use the GUI if possible, unfortunately mine is not working except for the root domain.

The root domain is listed in the drop down and it added the DKIM without any issues, but if I try to open the drop down to get to another domain it won't open.

The mail servers been recompiled a few times already.

Is there any way to resolve this so I don't have to do the DKIM through SSH?

Screen grab attached
https://imgur.com/a/GoVOj

Ok very strange, I removed a domain that I wasn't using a .host domain and now the GUI is working