My previous apartment didn't provide me CRP because the property was under non-profit status of the foundation. Should I request RPA (Rent Paid Affidacit)?

There can be a few reasons a CRP (Certificate of Rent Paid) would not be provided.

You don't mention what the non-profit foundation is, but a health care facility wouldn't be required to provide a CRP if the rent is paid through certain assistance programs.  See Calculations for Health Care Facilities on the CRP Information for Landlords page.

It's possible you don't qualify for the refund.  See Who Qualifies on the Renter’s Property Tax Refund page.

But, generally, a landlord who owns or manages a rental property and rents living space to someone is required to provide a CRP to a renter if either property tax was payable in 2022 on the property, or the property was tax-exempt, but the landlord made payments in lieu of property taxes.  You'd need to check with your landlord.  See Certificate of Rent Paid (CRP) Requirements in the second link above.

You should double-check with your landlord to make sure that you aren't disqualified (or the property isn't exempted) for some reason.

But if you appear to qualify, you might want to go ahead and request an affidavit.  See Rent Paid Affidavit on the Renter’s Property Tax Refund page.