Thats life. Generally before a restart administrators will warn players to head for the nearest bank to deposit their money, hence it saving. In cases there are no warnings and it just restarts are likely to be crashes. All we can say is bank on a more regular basis.
However, if the money out of your bank is lost, then it is likely to either be a bug, or you haven't registered. Are all your stats including bank money in place as normal?
However, if the money out of your bank is lost, then it is likely to either be a bug, or you haven't registered. Are all your stats including bank money in place as normal?