New wallet came out today:) You have to update. https://github.com/iotaledger/wallet/releases/tag/v2.5.0
Find a node that works and log in. http://www.iotasupport.com/lightwallet.shtml
You might see O balance. In order to regain your balance, all you have to do is generate addresses. This is also part of helping the network recover and get transactions confirmed faster.. (took me 25 times till showed) Some nodes are having problems so switch if needed. Mac wallet is also getting fix done so will have to wait. here are some other steps if you are still having problems
go to Tools>Edit Node Configuration and change "min weight magnitude" to 14 and press save
Need more help? Join https://iotatangle.slack.com