Game Bug- Reload Error

Ok, so me and a couple fellow Pioneers are playing a game and we get the "Please reload game for the changes to take effect" almost every 10 minutes, and then this error pops up:

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TypeError: Invalid calling object

at hup.ui.utils.ConfirmDialogController.prototype.confirm (https://www.callofwar.com/clients/ww2-client/ww2-client_dev/js/main-built-min.js?bust=1501689364:63142:7)

at Anonymous function (https://www.callofwar.com/clients/ww2-client/ww2-client_dev/js/main-built-min.js?bust=1501689364:113423:7)

at clickCoolDown (https://www.callofwar.com/clients/ww2-client/ww2-client_dev/js/external/bytro/polyfills.js?bust=1501689364:996:17)

at r.event.dispatch (https://www.callofwar.com/clients/ww2-client/ww2-client_dev/js/external/jquery/jquery-3.1.1.min.js?bust=1501689364:3:10183)

at q.handle (https://www.callofwar.com/clients/ww2-client/ww2-client_dev/js/external/jquery/jquery-3.1.1.min.js?bust=1501689364:3:8269)

It seems to occur when an event happens, such as taking a province or receiving a message. You have to refresh the page to get back into the game, because if you click reload, the error pops up.