I’m sorry for the delay @syahid246 and @MatthiasVH
I have asked iFastNet about this and it does appear that a small number of tables were corrupted during the maintenance. If one of your tables turns out to be corrupted because of this, then I’m sorry, but there is no way we can restore them.
Your only option is to delete the current tables and recreate them, either from a backup (if you have it) or from scratch.