Applications

My iMessage application crashes on my Macbook Pro 15 inch (last El Capitan), immediately after it starts. Error message is: Reason for termination due to an untrapped exception "NSInvalidArgumentException" app,: '-[__NSCFString getBytes:length:]: unr

I've recently upgraded to El Cap, 10.11.6, on my MacBook, and everything was great, except for iCal. Now when I go to open it, the icon in the toolbar bounces, him point appears behind her and the calendar tabs appear at the top of my screen; However

I've updated to Sierra, na not use iCloud, now I see all of my dates in the calendar are gone!

For the last two days, when I try to add or edit an event in iCal I get the warning triangle and when I click it I get "server responded with"509"operation CalDAVMoveEntityQueueableOperation". If I go back to the server, I get the same message. I can

I have several different calendars in the iCal/calendar Mac.  I would like to have two separate calendars showing in two separate windows.  How can I do this?

When I open the app calendars, it shows this message, and it stays there, making me unable to stop smoking. I can only force quit it. What should I do?

I have two calendars, I subscribed to on my iphone, but they don't synchronize or show up on my other devices. On my phone, they appear under "Subscriber calendars" but they don't appear anywhere on any of my desk calendars. Any help appreciated.

No one knows what to do if one of my calendars disappears from the list of calendars that I have on iCal?  Oddly enough, I can see it on my phone.  I tried to move from iCloud on the Mac, but nothing has changed.  All my other calendars are appearing

Although I have studied this issue in forums, I'm still without resolution. New default event for the calendar of 'Calendar' in the game on my Mac of calendars even when it is initially unchecked and hidden in the calendars list. I don't see a place

Is it possible to apply several alerts to an event in the calendar. I often have an event and I want to be alerted to tell about the week before and then 1 day before