Fatal error on Config and Products edition

Hello everyone!
I just installed Hikashop and it looks great except for the products and configuration pages. It seems that it just does not have an style (css) file and load just the html like in the picture attached. I already reinstalled it several times but without success. I tried remove it directly from module folder and reinstall, same error... I don't know what to do. There's a way to remove it completely, without leave anything behind and reinstall? Is there a way to solve it?

Thank you very much!

Hi,

Delete the folders administrator/components/com_hikashop and components/com_hikashop via FTP and install again the install package via the Joomla installer and it will rerun the install process.

However, if you still have the problem, activate the "error reporting" and "debug mode" settings of the Joomla configuration and access that page again. At the bottom of the page you should see the error message which would help us understand the current situation you're in and provide a solution.