Account User Blocked

Hello everyone,

I am trying to reinstall multitrans program, but I got some errors and I need assistance to solve them.

The first message that appears when I open the program is "your maintenance contract has expired". 
Then, when I tried to login to the client's database I got a problem with the login: it says that my user account is locked and that I should contact the system administrator.
Can someone help me with this problem?
Thanks!
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