JavaScript no longer working!

Hi there, after working with the file a little, I seemed to resolve the original issue. I'm not sure what exactly I did, but I'm glad everything seems to be working as designed!

One other thing... when trying to get the course to pull the current date/time, as well as adding a heading to each notes printout... I get "null." Can someone help me identify how to resolve these things? I don't want to mess with any of the code in fear of messing up what has already been resolved. File attached.

Thank you!