Thank you for using Bitnami. Can you tell us which error message are you getting? I understand you are upgrading the Mautic application directly on your server. Do you get the same error if you try to migrate your current application data to another server running the latest version?
Maybe you are trying to upgrade too many versions in one single step and it is not possible. Can you check it with the Mautic developers in their official forum?
Apart from the above, 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?
Please note that you need to paste the code ID that is shown at the end.