Hey Eric,

This is most likely due to the permissions of the cache folder. You need to ensure that it has the correct permissions

I have changed permissions of administrator/cache folder to 777.
Still the same problem.

Since the message says it cannot delete the index.html I did that and still the same problem.

If it were a Joomla problem it would be on more than one page. This problem only occurs on the Easy Social sign up page. It has to be a Easy Social problem

Tell me how I can fix it.

Thanks.

Hello Eric,

I'm sorry but this is not only happen in Easysocial. If you go to your backend to clear cache, you will get the same error: http://screencast.com/t/ahydytJKc2K . Or you can try to change your default template in backend: http://screencast.com/t/GZX4m2mi8M