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 ('404d8b0adbf3dc4e2d0f5c6c2ba9ec94', -1, 1713567967, 1713567967, '127678cc', -11, 0, 0)

Line : 187
File : sessions.php