There are people using modified Paccoin wallets that are causing the syncing problems. Cryptopia and Yobit are down at this time because of this, but Tradesatoshi is up.
The user breakcrypto stated that a modification he supports would fix certain issues. I evaluated it, and decided against his proposal because it causes unlimited forks. This is the reason why the exchanges went down is because somebody is using his code to mine paccoins on a fork, I don't know why they would do this, you cannot send paccoins mined on a fork to the exchanges.
I've noticed my windows wallets are jumping in and out of sync. I am notififying the paccoin community to be wary of the proposed "updates" as they don't fix the coin, but as his name says, they break it.

Bill Corless
The Original Paccoin Developer

what can we do now? will we miss the upcoming offer? can we withdraw our coin from yobit & cryptopia with in time( before 1st Feb 2018)?

To be clear I am not involved with the paccoin redemption offer. My understanding is you can trade your paccoin (PAC) for Paccoin Cash ($PAC) during the redemption period. This is simply you trading your Paccoin for another currency Paccoin Cash. You can keep your Paccoin if you want, the coin will still go on.

As for the timeline, I urge users to be patient while Cryptopia and Yobit get their wallets synced up. It takes several days to rebuild the blockchain as many of you may know when you install your wallet for the first time. This is because there are users that are using an invalid wallet to mine paccoins, and its causing sync errors for the rest of us.

Thanks for the help, I read that in my pop up, I'm actually having issues finding that anti virus or viral program on my pc, its new and until I'm familiar with everything its always difficult for me to find what i need to do. even Microsoft help didn't specify enough for me to get into this firewall or quarantine to have it reloaded and or excepted. But my issue is why is it blocking it now and not before too?

I don't believe tradesatoshi is using a compromised wallet.

I have relayed this message to veternus.

Last question Bill, could the current dev release patch to cryptopia and yobit?  I thought when it comes to the original pac, you have the final say?

Thank you for creating this wonderful coin.

Thanks for the kind words, and I don't have the final say, the exchange has the final say. I don't think the patch solves anything, unless you want to mine paccoins without getting orphans.
See what these people don't understand is the point of proof of stake. (Read Peercoins whitepaper on this.) The idea of proof of stake makes so much sense.
If you own a lot of paccoin, you have a stake in it. If you don't have paccoin not so much.
Another point is Proof of Work PoW networks are subject to 51% attacks. Proof of stake (PoS) aren't. Their idea is to give miners a way to override proof of stake users. So if you implement their code, you can forget ever getting any proof of stake because the miners will overrule you, and you get nothing but orphans. They're turning paccoin on its head.
Another benefit of the current design is there is less incentive to mine paccoin, and more incentive to buy it on the exchanges. This drives up the value.
Their idea is pump and dump.
My idea is buy and HODL.

I'll leave it to the rest of you to decide which is best.

Mr Corlass - you are a 'POS'.  A thief a crook for taking so many peoples money.  You should take your POS old coin and let it die like it was.  You are a crook.  Go away.  Nobody has trust in your words. 

Is this true:  https://www.reddit.com/r/paccoin/comments/7rzejx/newold_pac_saga/

WHat is FUD sir?  Are you a crook?   Honestly how many coins have you?  Why such a big worry?

Mr Corlass 4 years 40 pages of talk here - you don't care or forgot coin?
Since new DEV team 60+ page on two months - I trust them not you.  You create fear!  Please silence your lying ways.  No trust in you.