Crash log and relevant code

Code in question

- (IBAction)onClickNewConsultation:(UIButton *)sender {
    @try {
        Consult *newConsult = [NSEntityDescription insertNewObjectForEntityForName:@"Consult" inManagedObjectContext:SCDataManager.app.managedObjectContext];
        newConsult.date = [NSDate date];
        newConsult.patient = _patient;
        
        ClinicalExam *clinicalExam = [NSEntityDescription insertNewObjectForEntityForName:@"ClinicalExam" inManagedObjectContext:SCDataManager.app.managedObjectContext];
        clinicalExam.consult = newConsult;
        
        
        NSError *error = nil;
        // Save the object to persistent store
        
        ////CRASH HERE:
        if (![SCDataManager.app.managedObjectContext save:&error]) {
            NSLog(@"Can't Save! %@ %@", error, [error localizedDescription]);
            return;
        }

    }
    @catch (NSException *exception) {
        NSLog(@"Problem creating a new consultiaton");
        
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"ERROR" message: [NSString stringWithFormat:@"We weren't able to create a new consultation for you due to the following reason: %@",exception.reason] delegate: nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show];     }
    @finally {
        
    }
    
//    [self update];
    
    
}

Crash Log

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Subtype: KERN_PROTECTION_FAILURE at 0x000000002d4fa3b4
Triggered by Thread:  0

Thread 0 Crashed:
0   libsystem_platform.dylib      	0x3943ca37 OSAtomicCompareAndSwapPtrBarrier + 15
1   libobjc.A.dylib               	0x38e2d947 realizeClass(objc_class*) + 75
2   libobjc.A.dylib               	0x38e2f793 lookUpImpOrForward + 71
3   libobjc.A.dylib               	0x38e28027 _class_lookupMethodAndLoadCache3 + 31
4   libobjc.A.dylib               	0x38e27df7 _objc_msgSend_uncached + 23
5   CoreData                      	0x2e50b4a9 -[NSFetchedResultsController(PrivateMethods) _managedObjectContextDidChange:] + 3305
6   CoreFoundation                	0x2e752e6f __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 11
7   CoreFoundation                	0x2e6c6aad _CFXNotificationPost + 1717
8   Foundation                    	0x2f0acec1 -[NSNotificationCenter postNotificationName:object:userInfo:] + 69
9   CoreData                      	0x2e50a79f -[NSManagedObjectContext(_NSInternalNotificationHandling) _postObjectsDidChangeNotificationWithUserInfo:] + 75
10  CoreData                      	0x2e50a737 -[NSManagedObjectContext(_NSInternalChangeProcessing) _createAndPostChangeNotification:withDeletions:withUpdates:withRefreshes:] + 295
11  CoreData                      	0x2e508de9 -[NSManagedObjectContext(_NSInternalChangeProcessing) _processRecentChanges:] + 2293
12  CoreData                      	0x2e507b33 -[NSManagedObjectContext save:] + 187
13  SkinConsult                   	0x000cb7a4 -[SCPatientHistoryVC onClickNewConsultation:] (SCPatientHistoryVC.m:564)
14  UIKit                         	0x30f49d9f -[UIApplication sendAction:to:from:forEvent:] + 87
15  UIKit                         	0x30f49d3b -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 35
16  UIKit                         	0x30f49d0f -[UIControl sendAction:to:forEvent:] + 43
17  UIKit                         	0x30f3573f -[UIControl _sendActionsForEvents:withEvent:] + 371
18  UIKit                         	0x30f49757 -[UIControl touchesEnded:withEvent:] + 591
19  UIKit                         	0x30f49421 -[UIWindow _sendTouchesForEvent:] + 525
20  UIKit                         	0x30f4444d -[UIWindow sendEvent:] + 829
21  UIKit                         	0x30f19d75 -[UIApplication sendEvent:] + 193
22  SkinConsult                   	0x000bb9b4 -[SCApplication sendEvent:] (SCApplication.m:15)
23  UIKit                         	0x30f18565 _UIApplicationHandleEventQueue + 7113
24  CoreFoundation                	0x2e75bf1d __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 13
25  CoreFoundation                	0x2e75b3e3 __CFRunLoopDoSources0 + 203
26  CoreFoundation                	0x2e759bd3 __CFRunLoopRun + 627
27  CoreFoundation                	0x2e6c446d CFRunLoopRunSpecific + 521
28  CoreFoundation                	0x2e6c424f CFRunLoopRunInMode + 103
29  GraphicsServices              	0x333c52e7 GSEventRunModal + 135
30  UIKit                         	0x30f79841 UIApplicationMain + 1133
31  libdyld.dylib                 	0x39325ab5 start + 1