Please try clearing your browsers cache:
Google Chrome - please click here for clear cache instructions
If a Mac user on Google Chrome please click here for instructions
Firefox - please click here for clear cache instructions
Safari - please click here for clear cache instructions
Once done please also do a page refresh by pressing on a PC the F5 key or on a Mac the Command + R key.
Please then log back into your CRM account which should then resolve this issue.
If this has not resolved the issue please contact at Support Helpdesk to report this issue.