Email functionality and forum updates

[NoMe]

hello

personnally when i try to read my old message, i have this answer!
MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1054 - Unknown column 'Guest' in 'where clause'
Query:
SELECT uid, username FROM mybb_dgc_users WHERE uid IN (Guest)

Please contact the MyBB Group for support.

i dont understand why, and i have a pm from MyBB but i dont know anithing about this thing and i can't read their message!
thanks NoMe

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