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 ('a8ff6f8426505c657828fa1dbc319d26', -1, 1714400929, 1714400929, '030e8e73', 3, 0)

Line : 158
File : sessions.php