I get error message at the end of every game

Game: klondike
Game #: 1089383525
Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36
JS-Version: 2017-04-25_17:53:12_-0700_eaa9e613a231fa243beeb6ed1fbfa70ad1f16073


Please describe the problem in detail:

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