Exchange 2013 Database has failed to mount

Hello,

Hope you all doing well.

Please see error below

Failed to mount database "MBX-DB2-Svrhqsmbx001v". Error: An Active Manager operation failed. Error: The database
action failed. Error: Operation failed with message: MapiExceptionDatabaseError: Unable to mount database.
(hr=0x80004005, ec=1108)
Diagnostic context:
    Lid: 65256
    Lid: 10722   StoreEc: 0x454
    Lid: 1494    ---- Remote Context Beg ----
    Lid: 45120   dwParam: 0xFD373E
    Lid: 57728   dwParam: 0xFD37AB
    Lid: 46144   dwParam: 0xFD3838
    Lid: 34880   dwParam: 0xFD3838
    Lid: 34760   StoreEc: 0xFFFFFDE3
    Lid: 41344   Guid: 894316a3-3534-411b-ae49-a4f989e7d714
    Lid: 35200   dwParam: 0x5F5C
    Lid: 46144   dwParam: 0xFD3F2D
    Lid: 34880   dwParam: 0xFD3F2D
    Lid: 54472   StoreEc: 0x1388
    Lid: 42184   StoreEc: 0x454
    Lid: 1750    ---- Remote Context End ----
    Lid: 1047    StoreEc: 0x454      [Database: MBX-DB2-Svrhqsmbx001v, Server: SVRBRSMBX001v.xxxxxxxx]
    + CategoryInfo          : InvalidOperation: (MBX-DB2-Svrhqsmbx001v:ADObjectId) [Mount-Database], InvalidOperationE
   xception
    + FullyQualifiedErrorId : [Server=SVRHQSMBX001V,RequestId=b8e23ee8-6aeb-4cde-99bf-b825c6a5a266,TimeStamp=7/30/2016
    2:38:45 PM] [FailureCategory=Cmdlet-InvalidOperationException] ECEF3E96,Microsoft.Exchange.Management.SystemConfi
  gurationTasks.MountDatabase
    + PSComputerName        : svrhqsmbx001v.xxxxxxxxxx

kindly help

Thanks and awaiting.

Ronald