Under Embed options in your game's project page, can you please select Click to launch in full screen so that it opens in the full browser window, rather than an iframe. The latter is unusable. This is unrelated to Adventuron's default opening in full screen.
Can you also fill out the game_information{} section in your source code so that you don't get the error message at the start of the game. As a minimum, you need copyright_message, game_name, game_version, uuid, written_by and year_of_release.