Unable to Add New User in newly installed OJS version 3.2.1.1

I am Unable to Add New User in newly installed OJS version 3.2.1.1.
Register Button Do not Work
http://logicalcreations.org/lcojs/index.php/jstem/user/register
Show empty page.

And when I am adding user through Users & Roles the following occurs:
“Failed Ajax request or invalid JSON returned”

Thanks

Hi @zaffarshah,

Check your PHP error log for details.

Regards,
Alec Smecher
Public Knowledge Project Team