Welcome to the Q&A Forum

Over the past few weeks, my website pages have been showing as partial in the Google Search Console. There are many resources/ files (js, css, images) that are 'temporarily unreachable'. The website files haven't had any structural changes for about 2 years (it historically has always shows as 'completed' and rendered absolutely fine in the search console). I have checked and the robots.txt is fine as is the sitemap. My host hasn't been very helpful, but has confirmed there are no server issues. My website rankings have now dropped which I think is due to these resources issues and I need to clear this issue up asap - can any one here offer any assistance? It would be hugely appreciated. Thanks, Dan