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 ('7933e8988818ec414a2bb7e32a53d0b1', -1, 1714350059, 1714350059, '0380c615', -8, 0)

Line : 158
File : sessions.php