Hello OrtizLF and welcome to Apple Support Communities.
I see you're having an issue setting Voice Control on your iPhone to Spanish. As a first step, try resetting the dictionary then rebooting the device and testing.
Return iPhone settings to their defaults - Apple Support
If that is not effective, as there in no actual Voice Control app to delete and re-install, you may need to consider reinstalling iOS on your device. While this shouldn’t affect any data stored on the iPhone, it would be a good idea to make sure you’ve got a backup in place:
How to back up your iPhone, iPad, and iPod touch - Apple Support
Once you’ve successfully backed up your device, follow these steps to reinstall iOS, making sure to choose “Update” when prompted:
If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support