unable to resolve host name

OK, I'm totally clueless with all this stuff. When I log onto SmartClient I get a message "unable to resolve host name" and it retrys in 30 seconds. Any suggestions (in simple language, remember I'm clueless).
Thanks

Post the complete log with the error message.


Post the complete log with the error message.
[20:07:20] SmartFTP v4.0.1049.0
[20:07:21] Resolving host name "ftp.neschooloffloraldesign.com"
[20:07:21] Unable to resolve host name.
[20:07:21] Active Help: https://www.smartftp.com/support/kb/81
[20:07:21] Connect failed. Waiting to retry (30s)...


Try www.neschooloffloraldesign.com
instead of
ftp.neschooloffloraldesign.com
That did it!! Thanks so much for your help.