The transaction cannot succeed due to
error: undefined is not an object
(evaluating 'e.toHexString').
You must increase your Slippage Tolerance.
1. Tap the 3 bars at the top.
2. You may need to increase your Slippage Tolerance by 25% in some circumstances. Slowly increase the Slippage Tolerance. You can safely click the X top right after setting the new value - it will save it.
3. Your transaction should eventually succeed.
In our case, we needed to adjust our Slippage Tolerance to 28% for swapping to a very very very cheap coin.