@WhyICantSolve 

Its not available in every country and unfortunately its not available in the Ukraine as per link.

https://www.paypal.com/paypalme/pages/countries

Also Paypal account holders in the Ukraine can receive payments with the recent change of policy, but they are restricted to receiving only friends/family payments as per link.
https://www.paypal.com/ua/smarthelp/article/faq4646

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You still can't do commercial transactions and receive goods/services payments.