#820 Unreadable characters when modifying censored word

I am administrating a Chinese forum.
In word censoring option I've put some Chinese words there.
When I click "modify" the Chinese words changes to some unreadable characters.
Can it be solved somehow?
Thank you.

Hello

Could you please show us a screenshot of your problem ?

Thanks in advance.

Yes. For example, the word I input is "跟着S"

Hello

Infact, it is an encoding problem.

I have reported it to our technicians.

Thanks

Thank you. Hope it could be fixed.

Hello

Our techncians have corrected the problem

It is solved   

Let me know

Wow, yes! Now the words can display right what they are!
Thank you so much for your prompt response and action!~ 

Your welcome