i created my site using infinityfree builder by accessing it from the settings in my client area but now i cannot access it please help 
Oh you might be new here!
Sorry but InfinityFree is removing the old sitebuilder (sitepro).
You should go to the control panel and find the sutebuilder and use the sitebuilder there!
I might think that infinityfree haven’t updated their client area yet.
I checked your account and I see SitePro was disabled for you because you didn’t have any active SitePro websites (as was announced).
On which account and domain did you have a site builder?