Jetpack Problem with Cloning

Hi,

I am using backupcreator to move a live wordpress site to a local host on my mac with AMPPS.

The restore completed successfully.

But when I tried loading the site, it prompts me to download file which contains the following message attached below.

https://www.dropbox.com/s/h51r7atr819s42f/Screenshot%202015-04-13%2017.40.40.png?dl=0

So then I tried Duplicator.

The site can be imported successfully. The front end is loading fine.

However, when I login to wp-admin, there is this message:
“Your IP (127.0.0.1) has been flagged for potential security violations. Find out more…”

So I inserted the following into wp-config by following the instruction given in the warning message.

define(‘JETPACK_IP_ADDRESS_OK’, ‘127.0.0.1’);

Now, I can login to backend but see the below message on a white screen.

Fatal error: Class ‘Jetpack_Protect_Math_Authenticate’ not found in /Applications/AMPPS/www/invitrodev/wp-content/plugins/jetpack/modules/protect.php on line 221

Please help. I have checked with AMPPS but they say its related to Jetpack plugin issue.

Thanks!

https://www.ads-software.com/plugins/jetpack/