Says it needs to update but unable to update
Unfortunately, you are only able to NETFILE the years 2016, 2017, and 2018.
Does this inability to Netfile pertain to the Home and Business version for filing 2014 tax year and for 2015 Tax year also?
CRA is currently still accepting 2015 returns via NETFILE but that option could end at any time. For returns prior to 2015, you'll need to print and mail to the CRA.