IslandHost

Here is the solution (thanks to Nathan at WHMCS Support) The "Invalid System Template Name" error typically occurs when a custom template directory name contains illegal characters. Rename the custom sub-directory in /templates so it meets the requirements specified in the docs: http://docs.whmcs.com/Client_Area_Template_Files#Creating_a_Custom_Template Then re-select your Setup > General Settings > General Tab > Default Template setting and click Save Changes.

Hi the version is 6.1.1 Thx

We have the same problem, the system has stopped sending emails automatically and if we try to manually send them we get "Invalid System Template Name"

We are looking to do this too. Anyone got any ideas? It surely must be possible.