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 ('c78a1795b2d4434e0e4c45c379ae209c', -1, 1714638043, 1714638043, '039071c5', -2, 0)

Line : 158
File : sessions.php