Installed GA through GTM, an error appears - "Non-standard implementation". How to solve this problem?

Question

Google

Hello!
Added GTM to the site, before that GA and Yandex Metrica worked correctly. After installing and creating a container for GA, I checked it through the Tag Assistant. Gave an error Non-standard implementation.
1. How critical is it for collecting analytics?
2. How to solve this issue?

Answer 1

You need to check through the tag manager and not the assistant.