Date: 2019-08-01 17:58:10 +0000
Process: Preferences
Bundle id: com.apple.Preferences
Exception type: NSGenericException
Reason: Your application has presented a UIAlertController (<UIAlertController: 0x1050df800>) of style UIAlertControllerStyleActionSheet from PSSplitViewController (<PSSplitViewController: 0x104d775d0>). The modalPresentationStyle of a UIAlertController with this style is UIModalPresentationPopover. You must provide location information for this popover through the alert controller's popoverPresentationController. You must provide either a sourceView and sourceRect or a barButtonItem.  If this information is not known when you present the alert controller, you may provide it in the UIPopoverPresentationControllerDelegate method -prepareForPopoverPresentation.
Culprit: Unknown
Device: iPad (6th generation), iOS 12.2
Call stack:
0   CoreFoundation                      0x000000019ab0b530 __exceptionPreprocess
1   libobjc.A.dylib                     0x0000000199ce69f8 objc_exception_throw
2   UIKitCore                           0x00000001c6614878 -[UIPopoverPresentationController presentationTransitionWillBegin]
3   UIKitCore                           0x00000001c661d0e0 __71-[UIPresentationController _initViewHierarchyForPresentationSuperview:]_block_invoke
4   UIKitCore                           0x00000001c661ac2c __56-[UIPresentationController runTransitionForCurrentState]_block_invoke
5   UIKitCore                           0x00000001c6c9efdc _runAfterCACommitDeferredBlocks
6   UIKitCore                           0x00000001c6c8db2c _cleanUpAfterCAFlushAndRunDeferredBlocks
7   UIKitCore                           0x00000001c6cba744 _afterCACommitHandler
8   CoreFoundation                      0x000000019aa9c89c __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
9   CoreFoundation                      0x000000019aa975c4 __CFRunLoopDoObservers
10  CoreFoundation                      0x000000019aa97b40 __CFRunLoopRun
11  CoreFoundation                      0x000000019aa97354 CFRunLoopRunSpecific
12  GraphicsServices                    0x000000019cc9779c GSEventRunModal
13  UIKitCore                           0x00000001c6c93b68 UIApplicationMain
14  Preferences                         0x0000000104994a9c Preferences + 19100
15  libdyld.dylib                       0x000000019a55d8e0 start