I am opening my form developer after a few months. It was working perfectly till last time. But now when I open my form developer, and open one fmb file, it gives the following error where it says FRM-18108: Failed to load the following objects.
Source Module: APPSTAND
Source Object: STANDARD\_PC\_AND\_VA
Source Module: APPSTAND
Source Object: STANDARD_TOOLBAR
Source Module: APPSTAND
Source Object: STANDARD_CALENDAR

On clicking 'OK' it opens the following:

Can someone please guide me to fix this problem.
Thanks and Regards
Hawker