Cpp insurable earnings

I have t4 from my employer and about $1,250 from a small cleaning business for the tax year 2019. When I put the info from my t4 into software and complete t2125 for small business it pops up an error that says....cpp/qpp contributions or pensionable earnings have been entered incorrectly. Check amounts on t4 particularly box 10,14,16,17,26 and 28. The info has been entered incorrectly. When I take the business income on t2125 out the error goes away. How do I fix this..