Can I enter my property?

Access

I issued notice on my tennant which terminated in February. In that month she asked me for more time as the local housing had nowhere for her to move to. After speaking to the Housing Authority I said she could stay on until somewhere was found. This continued until we went into lockdown. I have found in the last week that she has left the property and not paid any rent since March. She still has property in the property.
She will not answer her phone to me, I have received information that she is still living locally but I don't know where.
Can I enter my property? Am I entitled to rent since March?
Many thanks,
Tim.