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, session_admin) VALUES ('f25e94ed7526c592e3c5255d2f2e68f4', -1, 1713853519, 1713853519, '12bf05ef', 0, 0, 0)

Line : 187
File : sessions.php