Cant activate plugin

Hi. Im really excited to see this plugin in action. I host my site with godaddy and use google apps for business for email. Trying to get gravity forms email notifications to work!

After all day of debugging I found you! BUT. I can install the plugin, but when I activate, it doesnt finish and no errors come up, just a blank wp backend with the header and dashboard posts pages etc bar. Site still functions. I can get the backend to display again if I ftp in to server and delete postman folder…. can you help?

I use a customized child theme from elegantthemes.com

and I will try to adjust wp memory, and add debug to functions.

https://wordpress.org/plugins/postman-smtp/