I assume you're referring to the module within the Metasploit Framwork?
Code:
msf > use auxiliary/scanner/ssl/openssl_heartbleed
msf auxiliary(openssl_heartbleed) > info
Name: OpenSSL Heartbeat (Heartbleed) Information Leak
Module: auxiliary/scanner/ssl/openssl_heartbleed
License: Metasploit Framework License (BSD)
Rank: Normal
Could you include the error message(s) you receive when trying to load the module?
OSCP
--
If it smells like a duck, walks like a duck and quacks like a duck; then it probably is a duck.