[J65nko]

You could manually start the nameserver named in the foreground with increasing log level to see what is going on.

From named(8):

       -d debug-level
           Set the daemon's debug level to debug-level. Debugging traces from
           named become more verbose as the debug level increases.
       -g
           Run the server in the foreground and force all logging to stderr.

.

The "SEE ALSO" section of that same man page refers to two utilities that you can use to check your name configuration:

• named-checkconf(8)
• named-checkzone(8)