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 ('3193a27a3852f3cef5966f6549b9c01a', -1, 1714403546, 1714403546, '0391cea9', 20, 0)

Line : 158
File : sessions.php