Hey the exact same thing is happening to me, I tried the uninstall as well. Is there anything I can do now that can fix it?
Normally, this message means your internet connection has become slow or intermittent. I recommend exiting and restarting the game, and if that does not help, try restarting your device.
I also recommend checking to ensure your firewall is not blocking the program. You may also need to forward ports for the game to work correctly. For more information, please view this article.
Pokémon TCG Online Moderator
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