CID Superfecta, CallerID Service module code error

I have version 13.0.4.1 of the CID Superfecta module

There is an error in the code in module: /var/www/admin/modules/superfecta/sources/source-CallerID_Service.module on Line 59

the variable $st_unknown is misspelled.
Error marked in red, fix marked in green.

This is what is there now..
{{ else {
$url = "http://cnam.calleridservice.com/query?u=".$run_$
$this->DebugPrint("URL: $url",3);

$sname = $this->get_url_contents($url);

// CallerID service returns CNAM with the following pre$
$st_error = strstr($sname, "CNAM ");
$st_unknown = strstr($sname, "UNKNOWN");
$st_unavail = strstr($sname, "UNAVAILABLE");

// give up if any errors
if($st_error || $st_unkown || $st_unavail)

{ $this->DebugPrint(_("Error in Lookup.")); return; }}}

this change fixes it..

{{ else {
$url = "http://cnam.calleridservice.com/query?u=".$run_$
$this->DebugPrint("URL: $url",3);

$sname = $this->get_url_contents($url);

// CallerID service returns CNAM with the following pre$
$st_error = strstr($sname, "CNAM ");
$st_unknown = strstr($sname, "UNKNOWN");
$st_unavail = strstr($sname, "UNAVAILABLE");

// give up if any errors
if($st_error || $st_unknown || $st_unavail) { $this->DebugPrint(_("Error in Lookup.")); return; }

}}