Actually we rolled back to the previous version, so I can not trace that bug!! I currently have access to the that url and all of the services are available. :D Anyway, thank you very much, maybe your solution would be helpful in the future.
Thanks for your reply,
Hi there , Try to add your new entity in the context file. :)
The error was due to using ChameleonForms package and in the latest updates it override the DateTime modelbinders and the same key has been added to the project. Follow this thread ... <a class="postlink" href="https://github.com/aspnetboilerplate/aspnetboilerplate/issues/2132">https://github.com/aspnetboilerplate/as ... ssues/2132</a>