Getting "White Screen of Death" after activation

I initially installed the plugin and was in the process of activating some of the modules when I received the "white screen of death". The only way around it was to rename the plugin folder to force de-activation. Now, if I try to re-activate it, the white screen returns.

I have this installed on WP Engine and I did submit a support ticket with them. They took a look at it and reported the problem is that there is code in the plugin expecting PHP 5.5 features. WP Engine is running 5.3.2. Here is their reply.

Is this a bug in the code of the plugin?