FB3.02 on Microsoft Windows Server 2008 R2

I had error MapViewOfFile failed many times on Microsoft Windows Server 2008

When this error occurs it's impossible to connect  database, but I can connect to an other database

My database seems reject all connexions

The only way to reconnect is to restart firebird server

I will upate firebird server to F3.0.3

Have you an idea why I have this error ?

I had this error only on Windows servers, never on WIN10 by example

Thank you

Eric