Is that a legal eviction even when she has the money but chooses not to cash it somewhere else?

I paid my rent on time to the landlord. She received the money order as always but her bank couldn't scan it. I asked her if she could she take it somewhere else to cash the money order. She refuses to do so. I explained that where I got the money order from, they will not replace or refund me because it was signed. The landlord said that I need to give her more money even if that means losing out on the money.