Languages in error message all mixed up

I don't understand what is going on with the personnalized message (on error) in zoho Form.

Let's go in "Choice Type Fields"

As you can see in the image, 50% are in english, 50% in french. WTF.

I know I can correct them in the right column, but I don't know why I ned to do this.

Also, there is about 200 fields to check, and I currently have 24 forms so it's not trivial to correct.

Any suggestion to not have multiple languages in my error message?

thanks