Hi guys I have an issue i cannot solve with my potcoin wallet

I mined some thousands of potcoins years ago and my wallet (upgraded) runs fine and it's staking but my balance is O instead of my stake that is some thousand

I wanted to transfer some of them to my poloniex account but it tells me i havent sufficient founds and yes it shows balance 0

Why? before my sold was right and never maid any payements... My stake is the amount my balance should be but i cannot do anything of it and it gets me crazy...

I don't know if it's clear enought so it shows:

balance: 0
STAKE: 4000
Unconfirmed: 0
TOTAL: 4000

I'm lost I really dont get it can someone help me please?

And yes something is definately going on with all that volume without any major reason :-/

edit: i think i get it now it may has to mature the remaining blocks to get back my balance I let the message for other who may has the issue like me