Net file? Are you in Canada?
This is the U.S. TurboTax public user forum. For help with Canadian taxes, please post your question in the Canada TurboTax user forum., at the following link.
https://turbotax.community.intuit.ca/community/turbotax-support/help/03/en-cahttps://turbotax.intuit.ca/tax-software/index.jsp
I'm not sure if this is the same problem you are experiencing, but see if the last post in this thread helps eliminate the error: https://turbotax.community.intuit.ca/community/seniors-students/discussion/getting-an-error-that-cpp-contributions-or-pensionable-earnings-entered-incorrectly-have-checked/00/946415/page/5
Otherwise, please call TurboTax Customer service. Here is a link: Turbo Tax Customer Service
I suggest contacting TurboTax Canada using the link provided by xmasbaby0 above. There are individuals on that site that should be able to assist you.