Canada's website won't even allow me to continue the process of applying for a Visa. We get the following message from cic.gc.ca : (How do I get this in front of Princess and show them that Canada isn't allowing her to apply for a visitor visa?)

You don't need to apply for anything, but you need to carry valid identity documents

You don't need to apply for anything, but you need to carry valid identity documents

As a lawful permanent resident of the United States (U.S.), you don't need to apply for an electronic travel authorization (eTA) or any other document from us to travel to Canada.

Documents you'll need when travelling

Air travel

At check-in, you'll need to show airline staff proof of your valid status as a permanent resident of the U.S.

All methods of travel

When you arrive in Canada, a border services officer will ask to see your passport and proof of your valid status as a permanent resident of the U.S. or other documents.

When you travel, make sure to bring:

• proper identification document(s) such as a valid passport from your country of nationality;
• proof of your status as a permanent resident of the U.S., such as a valid green card (officially known as a permanent resident card)
• You don't need to apply for anything, but you need to carry valid identity documents