I need help with activation lock. I purchased an iPad and there is an activation lock on it

You can't; it's an anti-theft measure. If applicable, ask the people running the website or store you bought it through for a refund.

(209119)

You can’t remove activation lock. If you don’t know who the old owner is, recycle the iPad responsibly or use it for a door stop. You will never be able to remove activation lock without the original owner’s help.