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 ('f3d6f5266c931d281d0097a2ac881455', -1, 1730439636, 1730439636, '038d13d4', -1, 0, 0)

Line : 195
File : sessions.php