phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('bd121bd9d0d7cf0c0401524b1282fdab', -1, 1744254694, 1744254694, '340fead9', 2, 0, 0)

Line : 187
File : sessions.php