A few of our players discovered away to get around the recent update by changing your iOS device's region.
Based on their input and our own testing, we've devised a step by step process to do just that so you may play the game without running into the quest error.
Step 1: Open the Settings and tap the "General" tab.
Step 2: Scroll down and tap the "International" tab.
Step 3: Tap "Region Format" tab.
Step 4: Change region format to Vietnam (one of the known regions to work around this bug).
There are a number of other regions that work around this, but Vietnam is the one we know works. If you have anything else to add please do and we will amend this post.
Thank you to everyone who helped contribute to finding this work-around! You're all awesome!