1 - Establishing an FTP connection
You can find instructions on how to establish an FTP connection to your server in the article "How do I connect to my web hosting package via SFTP?"
2 - Cause of the error
The error message "530 Login incorrect" occurs when an incorrect username and password combination is entered during an FTP connection attempt.
Therefore, please double-check the entered information.
2 - Other possible solutions
What should I do if the connection is still not possible after checking?
You can find the access data for this in the administration of your web hosting product under "Access data".
If you do not have the correct password for the FTP user, you can of course reset it here at any time.