pixel_player55793962
Not sure which platform you are playing your game through...but have you tried the following?
Have you tried the usual things such as clearing cache, cookies, history, etc?
Have you tried the other usual things such as logging out & in of game/browser/Facebook/portal/Google Play, switching device/internet source off & on, tried using a different browser, uninstall & re-install (but only do this if you have your game progress & player ID registered with either your email address or Facebook account)?
Are you using the most up to date version of the game?