A few moderators from Stack Exchange communities decided to go "old-school" and developed a desktop application for Stack Exchange. You, as an enthusiastic user, of course want to try it out. Everything worked fine for the most part, but suddenly an error dialog pops up:
Note: The typo in "occurred" is unintentional, maybe I will fix it later, but it isn't important to the puzzle anyway.
Apparently the developers have a sick kind of humor... But you decide to play along. You must figure out what the exception is, and judging by the last sentence of the message, you're not allowed to view the source code (which should be obvious anyway...).
The grid also seems to be important. It's made of 7 rows and 7 columns, and a gray object is moving across the grid, stopping & blinking at specific coordinates.
List of points where the object stops (in order):
3,2 4,6 1,4 5,5 4,5 2,4 4,7 4,5 4,3 5,4 2,5 4,4 5,5 4,1 4,4 4,5 7,4 2,3 4,6 3,2
The developers like to proudly show everyone that they're the mods of SE communities.
What is the actual exception the error dialog is trying to display?