why does my film keep doing this

i feel like i’m a frequent, i post here a lot with questions about my cameras but today in particular i am extremely confused.

my film keeps gushing to the bottom and i can see the brown back thingy, i threw away the pack and inserted a new one.

this film is about 14 months old, i’ve been keeping it in my refrigerator for the passed 4 months so i don’t know why this is happening ‼️‼️‼️

my flash also doesn’t work, and i feel like this is a camera issue and not a film issue, because it took one photo earlier and it’s just entirely dark, with horrible exposure and blurryness. I HAVE AN AUTOFOCUS FOR GODS SAKE.

got this camera at an estate sale so i wasn’t expecting much but i’m just bummed out, is there any way i can make it lighter when developing?

seperate issue; the flash does not work (i took the photos in a lit space), is there any way to replace it on a sun autofocus 660