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 ('1c8b6b3e12b8177a5d17c11aa28740d5', -1, 1754458832, 1754458832, 'd849d88b', 1, 0, 0)

Line : 189
File : sessions.php