Anybody knows what they mean by "IRCC will contact the applicants once they are approved"?You will just have to wait now. In the most recent update on January 5, 2020, IRCC is no longer accepting ready to travel webforms.
https://www.canada.ca/en/immigration-refugees-citizenship/corporate/publications-manuals/operational-bulletins-manuals/updates/2020-covid-approved-pr-applications.html
How can they know we are ready to travel if we can't send RTTs, and what is there to approve? Any idea on the timeline?