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 ('a53922715518b0529224a4d2dbc13422', -1, 1714724937, 1714724937, '12dc0b22', -9, 0)

Line : 158
File : sessions.php