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 ('8f9a5c635228d53a46f6797ed735b661', -1, 1730419487, 1730419487, '12760244', 35, 0, 0)

Line : 195
File : sessions.php