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 ('6923dc49cbc3842bd7280e3de09eb29d', -1, 1714596726, 1714596726, '031633f1', -9, 0)

Line : 158
File : sessions.php