Better Black Market died in the last patch, possibly due to the Shards being removed from the Store, grabbed bit from log below that looked relevant.
Imagine there's little interest in keeping these going, but FYI any way

Code:
System.MissingFieldException: Field '.Store.ENABLE_SHARD_PURCHASES' not found.
at ScrollsModLoader.ModInterceptor.Intercept (IInvocationInfo info) [0x00000] in <filename unknown>:0
NullReferenceException: Object reference not set to an instance of an object
at ScrollsModLoader.ModManager.disableMod (ScrollsModLoader.LocalMod mod, Boolean rebuild) [0x00000] in <filename unknown>:0
at ScrollsModLoader.ModLoader.unloadMod (ScrollsModLoader.LocalMod mod) [0x00000] in <filename unknown>:0
at ScrollsModLoader.ModInterceptor.Unload (System.Collections.Generic.List`1 modsToUnload) [0x00000] in <filename unknown>:0
at ScrollsModLoader.ModInterceptor.Intercept (IInvocationInfo info) [0x00000] in <filename unknown>:0
at ArenaChat.handleMessage (.Message msg) [0x00000] in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[],System.Exception&)
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
at MiniCommunicator._dispatchMessageToListeners (.Message msg) [0x00000] in <filename unknown>:0
at MiniCommunicator._handleMessage (.Message msg) [0x00000] in <filename unknown>:0
at MiniCommunicator._updateReceive () [0x00000] in <filename unknown>:0
at MiniCommunicator.Update () [0x00000] in <filename unknown>:0
(Filename: Line: -1)