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 ('239078ee39f5446cd9bc08a52f5b3541', -1, 1714733866, 1714733866, '038d1bf4', -9, 0)

Line : 158
File : sessions.php