phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7f87c6b6f3b0b1d0d66256bc0f2ea3fc', -1, 1715332488, 1715332488, '0314eebb', -8, 0, 0)

Line : 189
File : sessions.php