HTML5/WebGL: Game Not loading or frequent crashes

[RIAP27]

Been getting a Embedded message or whatever from slashkey.com "Your browser does not support WebGL "
USER ID number ( 1545131279 ) and USER ID number ( 118693448904273 ) Its been crashing mid game. Just started out of the blue. Been playing just fine up to this point. I cleared browser history and caches and ran memcache. IBoth games are running now but it is weird that it just goes black and gives me that error message. I have not had any issues with crashing and burning before, even when we 1st shifted over.