error notice Undefined offset: 0 abstract-class-tracking.php on line 311

Hello there,

I get this error on top of pages when i’m logged as the main editor of the site (a visitor doesn’t see it) :

Notice: Undefined offset: 0 in /home/grained1/public_html/revedebrocante.com/wp-content/plugins/google-analytics-for-wordpress/frontend/abstract-class-tracking.php on line 311

Note that i migrate my old site to a new domain and i have after that an error witch class-frontend.php. i then updated the plugin and now i have this error.

Whant can i do ?

website : revedebrocante.com

thank you !

https://wordpress.org/plugins/google-analytics-for-wordpress/