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 ('f030b20b25df41de5e4bd26dd16dd872', -1, 1713578991, 1713578991, '038d003d', -4, 0, 0)

Line : 187
File : sessions.php