If you run into DynasignWatcher or sDynasign has stopped working error message (see attached image) on the player, it is most likely that a Dynasign system file is corrupted due to power outage. To correct the problem, you need to reinstall Dynasign LE2 player or copy the attached dynasign.exe.config to the player computer c:\dynasign\dynasignplayerle2\ folder.
After the player problem is fixed, you need to publish the App to the player again.
In case you need to download the player software, please use below download link
Be sure that your publisher version is the same as the player version. If not, please upgrade the publisher version first, then upgrade the player from the publisher.