Why is my landlord evicting me for non payment

I fell back on my rent and my landlord and i talked and agreed id pay 150 a week for back rent and the 350 every month then i missed a 150$ payment due to death in family so on monday he came tobdoor with a a notice to quit. I had the 150 pluse the 350 in hand but refused to give it when served then we got together a few day later and i explain to him that i have put over 5000 $ wourth of repaires in fix up place and the agreement was id fix up place for 350 securtiy and 350 1st months rent but ended up putting more have receipts ask him to take the the work out of the amt i paid over to fix he agreed again and then 3 days later gota knock on door and got legal papers what should i do