RSS feed fails at Feedburner with Time out error

First about my site and history

Own hosted wordpress site: https://www.ideationcloud.com

I moved from blogger to my own (mt) hosted platform. This went fine and I did installa a couple of important plugins like Akimset, wp-cache (on mt admin’s advice, Sociable etc..not much)

Now problem is that I don’t want to lose my subscriber base but want to enhance it. Feedburner burning fails, validation fails (validator admin does notice that it takes too long).

Pingdom/fpt give s thsi error: Processing was stopped because of internal error: TIMEOUT_EXPIRED()

Now I don’t have too many plougins
Installed wp-cache on (mt) admins advice
My theme is a borrowed one, apparently used by many: https://cssace.com/free-wp-premium-theme-is-here/

Hopefully I’ve given you enough info to help me out here.

Appreciate the help in advnance.

Tarry Singh

What else could be going wrong here?