Image in MemberExtension doesn´t shown in frontend

I don’t think that Member is versioned, so you’re probably falling foul of the issue described here: Silverstripe 4 gotchas

Assuming the above is true, and this is just a publishing issue, if you add the following method to your extension, the images should get published when you save the record:

public function onBeforeWrite() 
{

        if($this->owner->profilImage() && $this->owner->profilImage()->exists()) {
            $this->owner->profilImage()->publishSingle();
        }
      
        parent::onBeforeWrite();
}
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