@Elnar 

The SubGHz frequency supported by Tapo SubGHz devices in different countries/regions differs, and devices with different region code versions cannot be used together. Introducing TP-Link SubGHz Technology

You may return one of the devices and purchase a new one from a local online website. TP-Link Where To Buy

It is recommended to contact the seller to confirm the device's version before purchasing, as some third-party sellers buy from unofficial sources, and the product may be a version from another region.