Update server is not exists.

[zstergios]

Warning: file_get_contents(http://jetlicense.com/versions/jetservercsfmanager.txt): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/croc7/public_html/clients/modules/addons/csfmanager/csfmanager.php on line 172

Please update the server URL for new version checks

[Ethelior]

i think my dear friend, the maintenance of this module has stopped! Even the domain has expired... !
Well, maybe if we could remove the new version checker....