I keep getting this error that my Spouse's in canada and outside canada income do not add up, but I have checked the maths, it all adds up, its only two values, any help?

The exact message is:

The spouse or common-law partner's net income while you were living in Canada plus net income while you were outside Canada must equal the spouse or common-law partner's total net income. Please correct to make your return eligible for NETFILE.