cannot publish course

Hi trying to publish a course, bit keep getting below error message. Any suggestions?

Results Slide

I have accidentally deleted the results slide from my project. How do I bring it back?

Can’t add assets slide into project

Does anyone knows the reason, I am not able to add the asset slide into my project. I have already check the updates and its up to date.

Learning Interactions

I added a learning interaction (widget) into the project but somehow it’s not supported when i preview the project, how its possible that a built in feature is not supported in Adobe Captivate? Any suggestions please what am i doing wrong?