First Deploy and mcrypt problems

Hi all!

I'm trying to deploy my first app and I'm pulling my hair out over this..I can't figure out how to fix it. When I try to deploy in envoyer. I get the following error. Any ideas on what I'm doing wrong?

Your requirements could not be resolved to an installable set of packages.

Problem 1 - Installation request for laravel/framework v5.0.34 -> satisfiable by laravel/framework[v5.0.34]. - laravel/framework v5.0.34 requires ext-mcrypt * -> the requested PHP extension mcrypt is missing from your system. Problem 2 - laravel/framework v5.0.34 requires ext-mcrypt * -> the requested PHP extension mcrypt is missing from your system. - illuminate/html v5.0.0 requires illuminate/http ~5.0 -> satisfiable by laravel/framework[v5.0.34]. - Installation request for illuminate/html v5.0.0 -> satisfiable by illuminate/html[v5.0.0].