opening and editing as a live site in expression web

[itman647]

i'am finding errors when i try and edit my site live using expression web, i reinstalled the frontpage extensions and it still has not solved the problem. i know frontpage extensions work on expression web because it worked perfectly fine a few months ago, but when i tried to access my site it said error windows sharepoint not found or something.

also when i try and upload via FTP to my site it returns me a message saying maximum users logged in exceeded? dunno why?

but any help would be useful!

thanks