From:
http://support.microsoft.com/default.aspx?scid=kb;en-us;301466&Product=fp2000
This issue may occur if your Web has reached the allowable size limit on the
Web server set by your Internet service provider (ISP). This can occur under
either of the following conditions:
a.. The files that you want to publish exceed the size limit on the server
set by your ISP.
b.. Old log files in your Web are not removed. Your ISP may create a
folder in your Web that contains log files to store information about your
account activity. These log files can become quite large over a period of
time.
c.. The server that is hosting your site is out of space.
You need to contact your host.
