phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('f584c2b11c8c5e35136eb21334a03974', -1, 1714383334, 1714383334, '12d99020', 8, 0)

Line : 158
File : sessions.php