Did you give her the calcium? That's the most important thing. But the egg blocking the cloaca is going to cause death in 24 hours unless you can get that egg out.
How close to the vent is the egg? Can you see it? If it's not right up against the vent opening, you have a very narrow window to syringe some egg white just inside the vent. You don't want to shoot it up her @$$, but just moisten the inside rim of the vent to make it slimy so when the egg reaches that point, instead of hanging up against the vent, it will shoot out of her.
How close to the vent is the egg? Can you see it? If it's not right up against the vent opening, you have a very narrow window to syringe some egg white just inside the vent. You don't want to shoot it up her @$$, but just moisten the inside rim of the vent to make it slimy so when the egg reaches that point, instead of hanging up against the vent, it will shoot out of her.