I am completely unable to finish filing my return because of this one point of review despite having no deductions and other types of expenses/income selected other than my main W-2. I've reviewed it multiple times and I'm honestly not sure if I'm missing something.
Based on the error message, it sounds like something was entered for an educator expense for your spouse, but based on your filing status you should not have a spouse.
Whether or not you have entered any qualified educator expenses, try going to that section of your return to see if there is a value entered there that can be deleted. Use the following steps: