Url redirect

I’m using polylang in my website, using two languages French and Arabic
I have a question, how can I make my wbsite redirect by default to one of the laguages
Now when I type my website example.ma I get a blank page
I have to type example.ma/fr/ or example.ma/ar/so it works (with the ending slash otherwise it doesn’t work!)
I already chosen a defalt language (fr)
Thank you

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