phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO mex2mex_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('a2a88a7f3619ceab9c265dbe18b68319', -1, 1397666774, 1397666774, '36cddd16', 7, 0)

Line : 170
File : sessions.php