phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO BP_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('609d89ad349cd56f276bc0b49af8fa7c', -1, 1762751559, 1762751559, '12610e57', -19, 0, 0)

Line : 193
File : sessions.php