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 ('9e3959cc57fb2870c6c3fd3b3396cace', -1, 1714382298, 1714382298, '038eae37', 7, 0)

Line : 158
File : sessions.php