This error message indicates that the authentication process to connect to the MySQL server at IP address 192.168.31.200 has failed for the user 'yht_scszykjcom'. The method used for authentication was 'mysql_native_password', but the access was denied due to incorrect login credentials. The error message also specifies that the user is attempting to connect from a device named 'DESKTOP-J9KUO9V'.
To resolve this issue, you should check the login credentials for the user 'yht_scszykjcom' and ensure that they are correct. You may also need to verify that the user has appropriate privileges to access the MySQL server from the specified device. Additionally, you should confirm that the MySQL server is running and accessible from the network.