Google lighthouse error NO <meta name="viewport"> tag found

[stanlegebeke]

Hello,

I have a problem with my store, I optimized my store and had a great google lighthouse score of 99 on SEO. 

Since I have further optimized my store is gave me a score of 77 on SEO while I did not change anything.

Here are my old performance metrix's.

When I change my theme to my old code I still get the error (NO <meta name="viewport"> tag found) in the google lighthouse performance report.

Here is the problem:

In my code i have the meta name viewport included.

Here is the code from my website, can anybody help me with this problem because I do not know what to do.
My store is: www.uwdiervoeding.nl
Regards
Stan Legebeke