GA doesn’t receive data from Tumblr when everything is correct

Recently I changed my Tumblr theme, and there is no Google Analytics data received. I’ve checked and make sure that the Google Analytics ID is correctly put in, as guided in this video. There should be no accidentally incorrect filter, because I haven’t changed it. Using GA Checker and it says “Error occured while crawling site.” Open the viewsource of the site* and there is a ga code as expected: