What do the statuses OVERDUE, SUSPENDED, FROZEN mean?

Statuses allow you to track what stage your exchange is at.

Overdue means that the allotted time to make a deposit has expired.
Suspended means that the exchange will take longer to complete. Usually the delay is associated with a large exchange volume or low liquidity of the coin.
Frozen means that the deposit has not passed AML verification and the exchange is paused. In this case, write to our support and we will help you solve the problem.