Can not active Trendmag Toolkit plugin

I had buy Trendmag Theme on Envato. However, I can not use this theme. The theme must install more plugins. And, I can not active Trendmag Toolkit and Trendmag Toolkit Plus. When I activate that plugins, my theme is “500 internal server error”. Please support for me to phunutieudung@gmail.com.

https://wordpress.org/plugins/trendmag-toolkit/