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 ('2c5e5d8d99deca21f70284b3d11a1cf6', -1, 1730417555, 1730417555, '12db2d58', 25, 0, 0)

Line : 195
File : sessions.php