You need to configure your two applications (wordpress and snipfly) to use apache virtual hosts. By default, the wordpress application is configured to use apache prefix and snipfly seems to be a custom application that you have installed on your own so I don't know how it was configured.
We have a Support Tool that will gather relevant information for us to analyze your configuration and logs. 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 ID that is shown at the end.
Also, you can check this recent ticket where a user was trying to configure three application in the same machine using different domains: