ionCube PHP Loader needs to be installed

I'm getting this error in WHMCS. I have a reseller hosting package. Please help me to fix this... I updated to PHP 7.1 because WHMCS latest update asked to update PHP to PHP 7.x

This is the error I got.

Site error: the ionCube PHP Loader needs to be installed. This is a widely used PHP extension for running ionCube protected PHP code, website security and malware blocking. Please visit get-loader.ioncube.com for install assistance.

Thanks!