Below are steps to follow to clear cache depending on the browser,
(How to clear cache and temp data)
Chrome: https://support.google.com/accounts/answer/32050?co=GENIE.Platform%3DDesktop&hl=en
Internet Explorer : https://clear-my-cache.com/en/windows/internet-explorer-11.html
Firefox: https://support.mozilla.org/en-US/kb/how-clear-firefox-cache
Safari: https://support.apple.com/en-us/HT201265
*Logout of LaserApp and reopen browser.