It is because in the view that you are opening up into, somewhere you are trying to call a method called row
on a UITableViewCell
.
You can see this in the first line of your crash log:
-[UITableViewCell row]: unrecognized selector sent to instance 0x1f8a6dd0
You should track down what object you are calling row
on and make sure that you are calling it on the object that you think you are and not a UITableViewCell
.