The Bowlr system works best on Google's free browser, Chrome.
It is updated more frequently than other browsers and means you are much less likely to run into problems, which can save a lot of time.
Download the Chrome installer from: https://www.google.com/chrome/
Then follow the instructions to install:
Open Chrome when it is ready, and you'll be prompted to make it your default browser. We recommend this, but it is not required. There may be a reason to keep your existing browser as the default one and use Chrome just for the Bowlr system. Speak to whoever is in charge of the club's computers if you are not sure.