hello ...
I successfully tested scripts myNews and Contact Form on Windows servers ...

I have loaded the same script on Linux servers, but both do not work!

He says:

"500 Internal Server Error
Internal Server Error

The server encountered an internal error or misconfiguration and WAS Unable to complete your request.

Please contact the server administrator, and inform postmaster@mauriziosalvi.com Theme of the time the error occurred, and anything You Might Have Done That May Have Caused the error.

More information about this error May be available in the server error log. "

Someone tell me if you would know about Linux server scripts should work? or am I wasting time?

Thanks to those who answer to me.
And excuse my bad English.