If you deleted an item, for example Contact Information, from your syllabus you can add the item back.
1. In Edit mode, look at the top of the syllabus - items available to add will be there in green boxes with a + symbol. Below is a screen shot of what I see having deleted the Contact Information section from my syllabus -
2. Click the Contact Information+ button to add the item back to the syllabus. This dialog will open - just click Save.
3. Now, you should see the section on your syllabus like the image below - you'll have to put in the information again or copy it from another syllabus.