Greetings and welcome to BYC. I see you joined quite a while back so I'm sorry that this issue has finally brought you to post. ummmm she hasn't laid in almost a year? I would think if she were egg bound, she'd be dead long before now, so probably not the issue. Molt can take several months, but that doesn't seem to be the issue either. Not sure where you're located so no idea what season it is where you're located (You really should put at least your general location in your profile). Right now here in TX as well as many other parts of the US it's really hot, and that tends to slow egg production as much as really cold weather does.
Where did you get your bird from? was it a hatchery? I ask simply because many hatchery birds are done laying by 2 years old and many don't live much longer than 2-4 years. Many folks order new/replacement chicks each spring so they hit POL in the fall and start laying before winter. When they do this, they normally don't molt & lay through their first winter and then molt and stop laying for their second. Some simply never re-start after that.