It looks like the usage of this NSError constructor is throwing an exception:
The operation couldn’t be completed. (Invalid .ctor used error 0.)
The documentation says:
Summary:
Do not use the Default Constructor unless you are dealing with a low-level API
that will initialize the object for you.
Remarks:
The default constructor for NSError leaves the object in a partial state that
can only be initialized by a handful of low-level Objective-C APIs. In general,
you should not use this constructor, you should instead use the constructor that
takes an NSString error domain argument.
https://github.com/Baseflow/XamarinMediaManager/blob/cbb1b0a589d82a9c261afb8a4455cf56222499fd/MediaManager/Platforms/Apple/Player/AppleMediaPlayer.cs#L170
It looks like the usage of this NSError constructor is throwing an exception:
The documentation says: