Hello @Fetlework_Gubena,
I found two problems:
For no. 1, you need to change it back to the original file name. If you don’t know the original name but you can tell me which week of which course the assignment belongs to, I can tell you the name. Currently your post is tagged under Course 1 Week 1 but that week is not supposed to have an assignment.
For no. 2, there are 2 lines at the top of each exercise code cell. Check this out on their formats and add them back.
Cheers,
Raymond