Publish website

Can any body help. I cannot update my website due to the message below. it was working fine up to yesterday.


[12:29:02] 220-IPv6 connections are also welcome on this server.
[12:29:02] 220 Please note: files for your website must be stored under the htdocs directory.
[12:29:02] USER anonymous
[12:29:02] 331 User anonymous OK. Password required
[12:29:02] PASS (hidden)
[12:29:03] 530 Identity not given
[12:29:03] Active Help:
[12:29:03] Cannot login waiting to retry (30s)...