We have updated the WHMCS module and WHMCS module for Resellers.
On WHMCS server where cloud flare is installed on those server WHMCS Virtualizor module was not getting loaded until clouflare was disabled.
Download link for WHMCS Module V2 :
Download link for WHMCS Module for Resellers V2 :
We request you to update the module if you are using cloud flare on your WHMCS setup.