During updating process (manual) of version 3.5.2 on my main website (http://www.msaccesstips.com) something went wrong and the Website Themes are not displaying correctly, either on the themes preview window in the control panel or on the website.
Subsequently, I have updated version 3.6 followed by 3.6.1 by following the procedure explained in this site correctly. But the problem still remains as it is. It looks like CSS in Styles.php is not recoganized. Tried switching to different Themes, even though their preview is not correctly shown on the control panel, but not successful.
I have updated version 3.5.2 in two sub-domains (vbasic.msaccesstips.com & xls.msaccesstips.com manually) on the same day I have updated the main website and they are running without any issues.
The earlier Theme used on the main website was similar one now running on http://vbasic.msaccesstips.com
Kindly advise, what to do to put my site back to normal.
Thanks in advance.