Hi @Heathdiesel, please clean your cache as well as var/generation and var/di folders and try again.

If it still doesn't work, please check your server logs and also how much memory your server has.

(Additional troubleshooting suggestions can be found here: https://github.com/magento/magento2/issues/4546)

Also, if you can, please upgrade to 2.1 as this issue was fixed in that release: https://github.com/magento/magento2/issues/4575.