Error: Can’t add Vietnamese language has mark

Hello community. I’m having a difficult problem I hope someone can help me with.
I am developing an application that adds data to airtable, but when I enter Vietnamese with accents, the data displayed in kodular are question marks, how can I fix this error, please help help from the community.

Screenshot 2023-06-04 173605

use encode block for saving, and use decode for retrieve… you can see in within the app only

Can you guide me how to solve this problem, thank you very much