Clone Site Error

I have 1 site up and running no problems.

I copied the site app folder, created a folder on my machine so perfect copy of the site. Create new folder on the server uploaded the copy so I have 2 exact sites. Coped the original db onto a new db so the cloned site has it own db. All is good except the cloned version is throwing

 

Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 40961 bytes) in /home4 /libs/1.3.11/cake/libs/view/view.php on line 728 (numbers changes on every refresh even down to 4 bytes)

 

And no idea why 1 would and 1 would not when they are exactly the same. Same server.

 

Does anyone have any kind of idea why?

 

Thanks

 

K