Fatel Error trying to use Make theme

I just downloaded and activated the Make theme. When I click customize I receive the following error:

Fatal error: Allowed memory size of 41943040 bytes exhausted (tried to allocate 30720 bytes) in /home/mysite/public_site/mywordpress/wp-admin/includes/plugin.php on line 201

**I edited the URL above to mask our actual site location **