Hi,
Please check at the end of the page if you have an error message displayed.
Otherwise, please check your PHP error log, I think you have a PHP fatal error.
With the error message, we will be able to tell more more about the problem.
I think it could be a memory limit problem, the configuration page is a pretty big page (at this moment you should increase your PHP memory limit in your web hosting PHP settings).
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.