Contact your landlord in writing that you have had a decrease in income do to the Covid-19 situation and communicate what you feel you can afford to pay as a partial rent payment. Sometimes the landlord will not accept partial payment.
Fully document all communications with your landlord but memorializing all verbal communication in writing through texts, emails or certified letters. Keep picture and videos of all needed repairs or problem situations.
Get solid legal advice from a "Tenant Only" attorney. An attorney that only represents tenants and has your best interest in mind and can fully explain your rights and options.