Thanks @csloisel and @lylechamney. The problem is been solved. The host changed the theme so I can log in to the website. I deleted the codes in Editor. Thank you!
I really use wp-admin to access the website so I have no idea of how to use local machine.
No, I cannot use the local machine for some reason. I use my credentials but FileZilla says:'”Command: PASS ********************
Response: 530 Login authentication failed
Error: Critical error: Could not connect to server”
Do you why?
Do you know what port is usually?
Thanks.
How do I know the address of my website of FTP?
