Joomla Virtue Mart Language

I'm using Joomla virtuemart for a Japanese site. I've found that when I use name or any other field in Japanese (or any other language than E开发者_JAVA百科nglish) it doesn't work. its redirected to the registration form. But when I fill every field in English, it works.

I've checked that, when I insert data directly to the database, the data saves into it. but from the site it doesn't.

It can be the problem of permission. Virtuemart doesnot allow you to use Japanese.To solve this problem you must search Language plugins for Japanese.