It might be a temporary connection error. If you keep seeing this message, please contact our phone support team, as they will be better able to assist you. To talk to our phone support team, visit https://support.turbotax.intuit.ca/contact/ . After entering some basic info about what you need help with, the page will give you the phone number for the team best suited to help.
Here is the help file that should have displayed:
How do I know if these apply to me?
You will know that these items apply to you if you received documents from your employer, bank, etc. for completing your tax return. Federal slips are called T-slips. Québec provincial slips are called relevés.
For all items that start with T or relevé, you should have a slip for this tax year. For example, if you are employed in Québec you will receive a T4 slip and a Relevé 1 from your employer.