If trying to use the PEAR module installer, please be aware that it is currently not working.
The reason this functionality is not working/available currently is to due with the recent hack of the PHP PEAR website, all services have been taken offline while they investigate this security breach.
cPanel was not directly affected by the compromise, however the PEAR installer will likely be unavailable until their services are restored.
You can find out more here if required.
Monday, February 4, 2019