working on the localhost but not on production

I install the vQuiz on the localhost and it is working fine but when I uploaded it to the production it is not working .
it gives me Http 500 error.

Hello,
On which page of vQuiz are you getting the error? Is it in frontend or backend?

in the frontend

Which particular page in frontend? Can you reinstall and try once? If it still doesn't work Please share your backend & FTP login credentials via Contact us form, We'll look into it.

Dear Sir,
I am trying to install vquiz on the production domain (server) but it gives me this message.
Note: It's a one time verification only. You won't be asked ever again.

note that I install it on localhost to test it before installing it on the production server.

Please share your backend & FTP login credentials via Contact us form, We'll look into it. And Please do not post same message at multiple places, It would delay the response process.