most of the homepage is gone

Get the following message from super cache:

One or more page requests failed:

• Page 1: 500 (Internal Server Error)
• Page 2: 500 (Internal Server Error)

The pages do not match! Timestamps differ or were not found!
Things you can do:

1. Load your homepage in a logged out browser, check the timestamp at the end of the html source. Load the page again and compare the timestamp. Caching is working if the timestamps match.
2. Enable logging on the Debug page here. That should help you track down the problem.
3. You should check Page 1 and Page 2 above for errors. Your local server configuration may not allow your website to access itself.

I saw that there is an update for blackbird, has this something to do with it, i made a lot of custom changes to the site. and site seems a lot slower

and still didn't update to to wordpress 3.5

Need some help here. Thanks

 

So very disappointed why is there no answer on my question

 

Hello,

Sorry for the delay.
We have received your detail and we are looking to it.
500 server error is a server side error. Your site is not responsible for it.
Please check link given below for more info.
http://pcsupport.about.com/od/findbyerrormessage/a/500servererror.htm