I encountered a BIND error during the installation of many domain names.
When I restarted BIND I received the following error message:
dns_rdata_fromtext: pri.site.com:2: near '.': not a valid number
zone starttherush.info/IN: loading master file pri.site.com: not a vali
_default/site.com/IN: not a valid number
After banging my head on the wall for a couple days, I worked out that when I was copying/pasting my domains from text list into ISPconfig, I included an extra white space immediately following the domain name. This forced the "." that follows the admin email portion of the SOA BIND records out of place.
The result was the peculiar error mentioned above.
Here is where you can help figure out BIND and SOA (Start of Authority) records...