With Helper.gg you're able to change the default translation language, by default it is "English", although if you want the bot to translate every message into a certain language you can.
Step 1: Logging into the panel
To do this you need to log into the panel at:
Parent.gg - Login
Step 2: Clicking "Command Settings"
You need to click "ommand Settings"
Step 3: Selecting "Translate Command"
Then click "Translate Command" then select "Message Values"
Step 3: Setting the default language
On the "Translate Guild Language" option, change that to the default language you want the bot to translate ALL messages too.