Feng shui mainly depends on personal opinions. The ancients believed in geomantic omen and thought that windows were the eyes of a house. In home geomantic omen, windows play a very important role and have a great influence on residential feng shui. But this statement has a lot to do with the cognitive range of the ancients, but as a modern person, I think we should still believe in science.
The window was broken twice, so I think we should replace it with better quality glass to be safe.