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 ('cbf958e9881fd80134e22b4e967e9bd8', -1, 1714249747, 1714249747, '03131ee8', 16, 0)

Line : 158
File : sessions.php