I have installed the below Extension for DNN sitehttps://github.com/groupdocs/dnn-groupdocs-annotation
While adding this module to one of my DNN page i am getting the following error
"Sorry, an error occurred while processing the request" (please find enclosed attachment)
I am not sure to have "GroupDocs" library for .Net to make it work. If yes, from where i can download (trial version) it. If no, please suggest what wrong I did which is causing the said issue.
I have already subscribed for the trail version.
Thanking you in anticipation!