If it is a 1098, it may be reporting mortgage interest.
The education section reports the 1098-T which does have a box 5.
If you are in the wrong section (1098-T education) delete the 1098-T and enter the 1098.
You can type 1098 into the search box and click "Jump to 1098"
Or find it under
Deductions & Credits
Your Home Show more
Mortgage Interest, Refinancing, and Insurance (Form 1098) Start