array_merge(): Argument #2 is not an array

Hi,

I am having an issue and this is the error I get on the top of every page on the backend:

Warning: array_merge(): Argument #2 is not an array in /home/theculx3/public_html/wp-content/plugins/duracelltomi-google-tag-manager/admin/admin.php on line 1409

Here is the line of code:

https://prnt.sc/o39bz4

My google analytics isnt showing any traffic and im getting an error in my notifications saying there is a ‘clicks and sessions discrepency’ acrued from my google ads account and analytics.

How can I resolve? Any idea? its really urgent I get it fixed asap for my ecomm site :S

Many thanks,

Ricky

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