If you’re having difficulty loading a game, you can let us know about it here. Try to be as descriptive as possible by including the OS you’re using, the browser and it’s versions and a link to the game in question. For example:
Chrome Version: 75.0.3770.142 (Official Build) (64-bit)
Opera Version: 63.0.3368.43
Mac OSX Mojave: 10.14.5
You can block the pre-roll ad which needs to be skipped after 5 seconds by installing the uBlock extension in Chrome.