Mail Task Error

[gabriel_segall1]

Hi everbody, I'm from brazil and I've been studying Activiti. I made a simple process and would like to test Mail Task but It has occurred the following error. <a href=https://goo.gl/VGosyH>https://goo.gl/VGosyH</a>

[jbarrez]

We would need to know what is shown in the terminal, the actual logs of the server will show the exception happening.