Uncaught ReferenceError: Ya is not defined

[Ermak-13]

Sometimes, Ya is not defined. It is not very ofthen but it happens :)

Sentry (Bug Reporter) Information:
EVENTS
131
USERS
29

browser
86%Chrome 77.0.3865
browser.name
90%Chrome
device
76%Smartphone
device.family
76%Generic Smartphone
os.name
67%Windows 10

I believe that in some case internet provider or adblock override "https://mc.yandex.ru/metrika/tag.js" file and when executing createMetrika is failed.

I suggest add condition
if (config.env === "production" && Ya) {