I have 1 account that, when trying to save any change to the config, I get

Fatal error: Call to a member function get_name() on a non-object in /usr/local/centovacast/system/class_XML.php on line 632

Also the stream wlil not start, Centova claims it is running but it does not have any music history, no currently playing track, nothing

I have 1 account that, when trying to save any change to the config, I get

Fatal error: Call to a member function get_name() on a non-object in /usr/local/centovacast/system/class_XML.php on line 632

It sounds very much like that account has a corrupted configuration file.  If this is an installation you've been using for awhile and just updating as new builds have been released, it's almost surely the result of a bug in a previous build that wrote out a bad configuration file, which Centova Cast is now (correctly) unable to parse.

If it's just a "dummy" account and the problem only exists for that one account, I'd recommend just deleting it.  If you want to preserve it, though, you're welcome to PM me the etc/server.conf and etc/source.conf for the account and I can try to determine the problem with the XML.

Yes also think it was a config error, I recreated with a different username and it is fine -- I had to delete it because I ran out of accounts but have upgraded my license to 25 so I can send it to you if it happens again, I also noticed port problems but I will post in bug reports when I isolate the problem(s), changing ports for problem accounts seem to work but again, problems are rare  -- I have found other minor issues also but no big deal, will post them when I get a chance -  it seems stable now which is great and sales are really poppin' everyone wants v3 LOL