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 ('5a42a7906136f4d772d6aa3e12dd6fe6', -1, 1714397673, 1714397673, '0316ab88', -9, 0)

Line : 158
File : sessions.php