An individual whose PR application has been approved, and has been issued a COPR and PR visa does not become a PR, until the individual lands in Canada, and is admitted at the port of entry.
Issuance of a COPR does not make an individual a PR.
The ban of foreigners into Canada, will also be effective on all individuals holding COPR and PR visa. They will not be allowed to enter Canada until further notice.
If you have a COPR and PR visa, you will have to delay your travel to Canada. On the procedure, see the most recent program delivery instructions.