If you are not reporting an error, then please use my Email page.
I really do appreciate you taking the time to report errors on the pages that I maintain, but please remember that my time is precious too and that I maintain over 15,000 pages and so I need an accurate description of the page that the error is on in order to be able to correct it.
When you came to this page, it should have given you another browser window or tab. In order to get the URL (address) of the page with the error, minimise this window, then use the (other) browser window (or select the other tab) to return to the page with the error (probably by using the back-arrow), highlight the address of the page with the error (at the top of that window), place the data on the "clipboard" (hold down "Ctrl" and then press "C"). You can then "Restore" this window by clicking on its icon on the task bar. Then "click" in the field below marked "URL (address) of the page with the error" to put the cursor there, and then use "Ctrl" and "V" to place the data on the "clipboard" in the field.