To select this option, click on the three vertical dots at the top right-hand side of your browser. A new menu will appear and depending on your browser select the option:

Chrome:

 (see here :https://helpdesk.tcsedsystem.edu/hc/en-us/articles/7888977932695-How-do-I-open-an-incognito-private-browser-in-Chrome-Edge-Firefox-and-Safari)

This should clear any caches in your browser.