The location of this iPhone can be seen by its owner 'k•••••@icloud.com

Hello ~ Are you the original owner? If not , you have an activation locked device. Take a look here:

Activation Lock for iPhone, iPad, and iPod touch - Apple Support

Also:

The All Too Common SAD Reality of Buying a Used iPad/iPhone

~Katana-San~

Hi pelumi145,

Thanks for using Apple Support Communities. It sounds like your iPhone is in Activation Lock. We’re happy to provide some information.

The article in which you came here from would be the correct steps for removing Activation Lock: How to remove Activation Lock - Apple Support

If you have additional questions, contact Apple Support.

Take care.