__WEBPACK_IMPORTED_MODULE_0_REACT ___ DECAULT.A.CreateContext nie jest funkcją
react-redux v6.0.0 uses the new context api provided by React
and in order for it work, either you need to downgrade react-redux to v5.x.x
or upgrade react and react-dom to v16.4 or above
npm update react react-dom
Testy Tarsier