My mother die without a will,but I was her durable power of attorney for financial mamngement.can I still manager her estate?

Can you explain this line in the durable power of attorney for me as follows:


Nature of power: this is a durable power of attorney and the authority of my attorney -in -fact shall not terinate if I become disabled or incapacitated or in the event of later uncertainty as to weather I am dead or alive!

Durable power of attorney ended when your mother died.