Error 521 host without www

Good Evening guis, i have a problem, i have a website hosted on Aruba, i configured CDN, but website without www show me 521 error.
With www is working all, can you help me? Url is:

Thanks a lot for all your help

I resolved the problem, link the solution for others People

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Iā€™m seeing a redirect from to so unable to recreate the issue.