I am having the same problem and I believe it is in relation to the hosting package not being able to handle the processing, or alternatively doesn’t have the space.
IE 500 is often caused by a php bug. Basically it is a crash. Does wp-clone copy all the plugins? If it has gone that far then try renaming the plugin directory which will make the plugins invisible to WordPress. See if that solves the problem. Rename it back if it does and install theme one at a time until you find the plugin that crashed.
You may have had caching running in which case the cache php file will need to be deleted and the plugin removed. You can always set up the cache again later. Hopefully one of those will fix the problem. If not something else is causing the crash.
i have hostgator.i use this plugin on other websites with hostgator but different account from this that i have the problem.I contact hostgator and the y told me that this is problem from plugin not from hostgator.
But the plugin works fine on my other hostgator accounts and websites.
what i did is to delete plugin, reinstall, clean cache memory but still the same problem
Cheers
