If you already activated it in the network admin board, I don't know if this can be related with the plugin itself. I suggest you ask in the official forums of WordPress or in the plugin's forum to get more information about this.
This guide can be also helpful
Please note that Bitnami packages and configures already existing applications. However, we can only offer support and help on basic and most frequent application configurations. Always based on the default configuration or on our guides.
Do not hesitate to contact us if you have any other questions in the future.