I believe that I put my income data correctly but I found unexpectedly 'other income' that I didn't put into. Would you let me know where it comes from?

I have two T4s, one T4(A) and a T2202A. I believe that I put my income data correctly but I found unexpectedly 'other income' that I didn't put into. Would you let me know where it comes from?

Getting started

Line 130 - Other income is used to report taxable income that has not been or should not be reported anywhere else on the return. There are a lot of things that might fall into “Other Income”. The CRA website has more details: https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-re...