10.3.3. Calendar Failure (on my Classic)

Now that I've upgraded my Classic to 10.3.3.1463 I have several problems with the native Calendar.
1. I can no longer get my calendar to open calendar dates that have been downloaded via blue tooth to my Classic (Link stopped working ages ago).
I receive the file in my File Manager, but they won't load to the calendar even though I tap the "+".
I get a blank screen after hitting the "+" sign to add the date in.


2. The phone no longer has calendar colors on it e.g. none to choose from.
In Settings, the Calendar colors window is empty.
I've restarted the phone and that didn't help.

3. All of my previous Calendar dates with appointments disappeared.
Anyone know the solution to these problems?
Thank you.