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 ('5e5728c4c90dbf74a77f0242c778a10a', -1, 1730421261, 1730421261, '03916b01', -1, 0, 0)

Line : 195
File : sessions.php