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 ('854e783b03f55a4bcf1a4f3f3e5bec4f', -1, 1714365828, 1714365828, '12768adf', 23, 0)

Line : 158
File : sessions.php