Frigidiare oven door inside glass broken

Did the self clean. Inner glass (the one you can put your hand right on when you open the door) has been cracked for years but today when I self cleaned, I was wiping the glass and a piece about 1 inch by 1/2 inch broke out of the middle and fell down into the space between the two glasses. It’s very thick but not quite 1/4 inch thick.

Can I use the oven at all with this little piece of glass missing? I have been using it for years with the crack in it but this is actually a little hole now.

What is the part number to replace it? Is it AP2125331 or #8 on the diagram? Also, can you tell me the link to step by step instructions for replacing the glass that is specific for this frigidaire self cleaning oven model #FEF353BFWE.

Thanks. I think I can do it myself as long as I have the right part to buy and the actual instructions for my frigidaire.