У вашего броузера проблема в совместимости с HTML5
Tutorial website : https://bloggerchive.blogspot.com/2015/07/remove-blogger-template-credit-link.html
Template designers adds their credit link in template. In some cases if you remove this credit link then after few seconds your blog automatically redirect to their website. This is because they add a JavaScript function which check the credit link in your blog. If the link is missing then the function automatically redirect from your blog page to their website.
Most of cases this function is encrypted by hex or other format. Sometimes they add this function several times with other JavaScript functions.
So you have to find how many times they add this function and their location. Decrypt each encrypted functions, mark the function which designer used for their credit link then remove the function.
To find credit link function location, Search "setinterval" word in your template. Select whole JavaScript and decrypt it. How to decrypt? and What to remove? Visit the tutorial website link given above. Here all the steps are given.
For any blogging tips visit : https://bloggerchive.blogspot.com