Server Exception

We just move our site onto Windows server 2003, and now when I try to access my web pages that use Firebird database I'm getting an exception:
[ArgumentException: Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection.]
System.Buffer.BlockCopy(Array src, Int32 srcOffset, Array dst, Int32 dstOffset, Int32 count) +0
FirebirdSql.Data.Gds.GdsDatabase.DatabaseInfo(Byte[] items, Byte[] buffer, Int32 bufferLength) +176
FirebirdSql.Data.Gds.GdsDatabase.GetServerVersion() +60
FirebirdSql.Data.Gds.GdsDatabase.Attach(DatabaseParameterBuffer dpb, String dataSource, Int32 port, String database) +264
FirebirdSql.Data.Firebird.FbConnectionInternal.Connect() +286
FirebirdSql.Data.Firebird.FbConnectionPool.Create() +49
FirebirdSql.Data.Firebird.FbConnectionPool.CheckOut() +340
FirebirdSql.Data.Firebird.FbConnection.Open() +370
NitocFireBirdData.Data.ExecSqlReader(String sSQL)
aztecdev.Reports.GetCheckDate()
aztecdev.Reports.Page_Load(Object sender, EventArgs e)
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +750

Has anyone had this problem and if so how did you fix it?
Thanks.