Can’t file Qc tax on line. Err message: investment not entered correctly. Fed tax was filed without problem. Program only allows printing and mailing.
Take a look at the restrictions that Revenue Québec (RQ) places on NETFILE: https://www.revenuquebec.ca/en/citizens/income-tax-return/filing-your-income-tax-return/filing-your-...
If any of these apply to you, you need to print and mail your QC return to RQ.