Why do I get an error message after completing level 499 3 times

Question

Have completed level 499 3 times and instead of going to level 500, an error message come up.

Creative_Elsa · Answer

Hi @rcansaw70,  welcome to our community. 
I would like to take a moment to offer you a message for all newbies to
learn more about our community which you can find here. 
We always run contests so be sure to enter them for a chance to win gold bars.

Is this the error message that you are seeing?  It's a Facebook glitch and we are waiting for them to resolve it.

QueenB · Answer

Gotcha!

Have you tried clearing the cache of your browser or perhaps tried another browser? Do you happen to have Windows 10 on your PC?

rcansaw70 · Answer

It says, You have experienced an error,we are working hard to fix. Yes playing on PC