Contains a <noscript> tag and invalid HTML elements which includes an image - noscript <head> should only contain <link> <meta> and <style> elements. Other elements such as images mean most search engine crawlers cannot then render the head, meaning the <head> is broken and further elements can be missed. The <noscript> section could be moved into the body, where <img> can be processed. If <noscript> needs to remain in the head then <img> and other invalid elements need to be moved to <body>.
Ensuring the <head> is kept ‘clean’ prevents the site from being perceived as lower-quality by search engines.
Additionally, it helps to prevent issues with rendering in the future as the site develops.