If you are using a AWS Cloud image, WordPress should run at / instead of at /wordpress, can you confirm that you are using a cloud image?
We have a Support Tool that will gather relevant information for us to learn more about your current configuration. Could you please download and execute it on the machine where the stack is running by following the steps described in the guide below?
How to Run the Bitnami Support Tool
Please note that you need to paste the code outputted by the tool in your reply.