BF4 Activation code pop up error

you can still use Battlelog but you have to use the pluging launcher method (uncheck the use plugin free launching option in the Battlelog settings), then you cannot use Chrome as Chrome doesn't use the plugin. I've found out of the major browsers IE (not Edge) works almost 100% of the time, next Opera has a pretty good track record, and Firefox has a spotty track record for launching with the Battlelog plugin. I verified that this method works after reading this thread