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 ('c4c2c13c6fb7f51039c29bd23da25803', -1, 1714399358, 1714399358, '127678cc', 15, 0)

Line : 158
File : sessions.php