I can't find the page you asked for. You might have made a mistake when typing, or perhaps the page you wanted isn't there any more. Ask your teacher for help if you don't know what to do.
The page I couldn't find was: /blog/school-news/registration-is-now-open-for-years-7-and-8-at-provo-primary-and-middle-school/attachment/salt-cay-trip-feb-2019/