plum tree

not sure if anyone can help on this one,, I have a plum tree in the garden,, there when we moved in, not massive but we have had plums from it every year,, this yera though everything seemed ok plums wer just coming but everything on the tree has now shrivelled up and basically it looks like its died! leaves brown and crisp like in autumn,,

any ideas or wil i have to get someone in to have a look

thanks

Leaf curl?    Did you prune it at the wrong time of year (whenever that is??)

My two look healthy - apart from snapped branches where blinking great pigeons keep settling!