Make sure you're on the right language server corresponding with the language in your game, look in the spoiler:
Spoiler

Unable to get property 'length' of undefined or null reference
TypeError: Unable to get property 'length' of undefined or null reference
at ultshared.UltProvince.prototype.getQueueableProduction (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:40614:19)
at Anonymous function (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:75368:7)
at hup.ui.ProvinceProductionsModelProductionItem.prototype.initialize (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:75366:5)
at hup.ui.ProvinceProductionsModelProductionItem (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:75360:5)
at hup.ui.ProvinceProductionsModel.prototype.getAllProductionItems (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:75695:9)
at hup.ui.ProvinceProductionsWidget.prototype.getFilteredProductions (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:76482:5)
at hup.ui.ProvinceProductionsWidget.prototype.updateUnitsTabContent (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:76458:5)
at hup.ui.ProvinceProductionsWidget.prototype.onTabSelected (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:76398:7)
at hup.ui.ProvinceProductionsWidget.prototype.updateContent (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:76374:5)
at hup.ui.ProvinceProductionsWidget.prototype.toggleOn (http://www.callofwar.com/ww2-dev/js/main-built-min.js?bust=1467789027:76336:5)
Details:
TypeError: Unable to get property 'length' of undefined or null reference

Make sure you're on the right language server corresponding with the language in your game, look in the spoiler:

And maybe try a different browser and/or update flash player on your pc
Do you have high command? That looks like it is trying to access the length of the troop production queue, but there is no queue object (it is null) so the script is throwing an exception.13black_dragon wrote:
Unable to get property 'length' of undefined or null referenceTypeError: Unable to get property 'length' of undefined or null reference
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