Problems with Google Analytics Tracking

Hello,

I'm having some trouble tracking my data via Google Analytics on my WordPress site.

Now i've installed the tracking code in the header of the page as i always do, it's been working fine and tracking the traffic, but suddenly since last week it stopped working for some unknown reason, when i access the site and i try to see "Active users now" to see if i'm being detected i don't get any.

Here is my code, did i miss anything ? Does anyone have any idea why ? Also i'm having some new errors in my console.

Any help on this matter would be much appreciated. Thanks !

Use this one - https://wordpress.org/plugins/google-analytics-dashboard-for-wp/ as it's much easier than adding the script on your HTML file.