could not edit modules contents

hello, pls after installing fitness template, I could edit the modules. Each time I click to edit or create new modules and type my information, the system takes back to the home page.
Thanks

you can login using the following info:

samuels-drivingschool.com/administrator
user: samsdrive
passwords: %OJK(UFfG5N6

Even changing the style is also affected. Editing or creating anything from the back/frontend is affected.

Thanks for your help

Ok I will inform other staff to check

When I try to login to your Joomla, I get this error "This webpage has a redirect loop".

So, please try to reinstall the entire HotStart and before that make sure that your host is compatible with Joomla 3. www.joomla.org/technical-requirements.html

Thanks

I noticed that this problem is affecting all me websites. Even the ones that I have installed for more than 2 years now.

It is was from my host. caused by ModSecurity.

Pls I need to remove the background image on the home page

Thanks