Thank you for your question and I understand your concern.
Based on your symptom, both door hinges will need to be replaced. The door hinges are part #
which can be ordered from
Searspartsdirect.com for Whirlpool wall oven model RBD306PDB1
I added an image below with the procedure of removing the oven door and the dis-assembly of the door in order to access and replace the door hinges located inside the door.
I hope this is helpful. If I may be of further assistance as more details become available, please reply to this post.
If you prefer to have a service technician replace the door hinges, you can schedule service through this link:
Sears Home Services.