can't login anymore

Can't login anymore.

My personal Norton firewall alows smartftp to open.

This is the message I get:
SmartFTP v2.0.1000.3
[00:34:32] Resolving host name ""
[00:34:32] Connecting to Port: 21
[00:34:33] Connected to
[00:34:33] 220---------- Welcome to Pure-FTPd [TLS] ----------
[00:34:33] 220-You are user number 1 of 50 allowed.
[00:34:33] 220-Local time is now 16:34. Server port: 21.
[00:34:33] 220 You will be disconnected after 15 minutes of inactivity.
[00:34:33] USER
[00:34:33] 331 User OK. Password required
[00:34:33] PASS (hidden)
[00:34:33] 530 Authentication failed, sorry
[00:34:33] Active Help:
[00:34:33] Cannot login waiting to retry (30s)...

Probably our administrator '' changed our password before he got sucked out of the office.
By doing that he blocked all access to the ftp-server.

How can we get access again?

Please help

You must mail your hosting for that, we can't help you more.