If you face an issue with logging to Vtiger cloud account, please follow below steps and share your output file (output.txt) to [email protected] via email.
https://files.vtiger.com/webftp/data/TrackDNS.bat
/path/to/TrackDNS.bat >>output.txt 2>&1
sudo su
https://files.vtiger.com/webftp/data/TrackDNS_MAC.sh
sudo ./TrackDNS_MAC.sh >output.txt
sudo su
https://files.vtiger.com/webftp/data/TrackDNS.sh
sh TrackDNS.sh > output.txt