Error: "Unexpected error while attempting to read from the database (0x80040217)" (4368519)

Error while using some Messagestats Webreports: Unexpected error while attempting to read from the database (0x80040217)

The conversion of char data type to smalldatetime data type resulted in an out-of-range smalldatetime value.

SELECT [Mailbox DN], [Originator], [Date], SUM([Size (KB)]) AS [Size(KB) (Total)], AVG([Size (KB)]) AS [Size (KB) (Avg)], COUNT(*) AS[_Count] FROM SELECT * FROM V_AuditMailboxMsgsSent) [_IntResult] WHERE(([Date] >= YYYY-MM-DD AND [Date] < YYYY-MM-DD)) GROUP BY [MailboxDN], [Originator], [Date] ORDER BY [Date] DESC, [Mailbox DN] ASC,[Originator] ASC

(0x80040217)