Since yesterday, I have the following problem with this site. On the top always appears the following sentence:
"Mathematics requires external JavaScript from another domain, which is blocked or failed to load."
I have already uninstalled firefox and reinstalled it, but the problem appears in every browser i am installing: Internet Explorer, Google Chrome, Firefox.
I checked, that Java Scriot is activated in Firefox and reinsalled Java. But nothing helps.
I also deleted the chronicle and cookies etc.
Does anyone have an idea? Thanks.