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 ('24a1d73be7e2ab0a2bc5e104e74d9734', -1, 1713555863, 1713555863, '038cb9aa', -1, 0, 0)

Line : 187
File : sessions.php