Hello,
Unfortunately, the "500 Internal Server Error" indicates that there is an error but it's still not the log we need to understand what is going on.
Now ; regarding your very first message, someone got the same issue and that person were able to provide the requested details for the PHP error log.
www.hikashop.com/forum/14-hikaserial/890...r-applying-code.html
Regards,
PS : Please follow the instructions written in my forum signature and never send me private message. I don't read them, I do not even receive a notification and they are automatically deleted.
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.