Bitnami packages and configures already existing applications. We can only offer support and help on basic and most frequent application configurations. Always based on the default configuration or on our guides.
If the issue is related to the application itself or any third party tool, probably someone with more experience and knowledge about that specific tool can help you better than we can. We suggest you to post your question on the official support forums of the application so others can help you with your issue.
You can find a similar case in this community forum and we redirect the user to the TestLink forum after reviewing the information of the logs
Do not hesitate to ask us any other questions about the Bitnami solutions