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 ('3c2a7d28a458c1016bf0b29aa2dfc701', -1, 1714546738, 1714546738, '12d99020', 20, 0)

Line : 158
File : sessions.php