The most recent update to my public tag repository is 15MB, or probably something like 1.1 million tags. This is very cool just by itself, but it is also completely overloading my YAML parser and causing MemoryErrors so that the client can never parse it.
As a result, I am shutting down my public tag repository for now so people stop wasting their bandwidth, CPU, and memory. If you don't want to see some popup errors, you can pause all repo sync under services->pause or specifically for my public tag repo in services->manage services. I will attempt to fix this tomorrow with the aim of bringing everything back up for the Wednesday release, but I will keep you updated!