HELP pls. Event code AVAA0-2621, can not start P6

My dear collegues, again, I would like to ask again for some guidance, I was trying to make an S-Curve to show

progress while in Resource Profile set up, then suddenly my P6.8.2 crashed, and when I load it up the following

showed, from my observation, the program it self is loading, its the schedule which is not being loaded.

This was due to i tried importing direct from .xer file ( right click-open ), importing says completed, then

again during loading the schedule these 3 notices comes about. I can not load any schedule anymore

.....saddest part of it is that I am using a stand alone setup and I was not backing up my schedules for a long while.

Hope you kind sirs, masters of primavera can help me with this predicament of mine. Thanks in advance.

Advices are most welcome

Romil