No, you don't. You can specify all the domains you want to include in the certificate when running the HTTPS configuration tool so there is no need to create more virtualhost blocks.
You can run the tool again and set all the domains (old and new ones) and it'll generate a new certificate file.
We have a Support Tool that will gather relevant information for us to analyze your configuration and logs. Could you please 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 ID that is shown at the end.