Where the host is open-source and the plugin is closed-source, and the crash is inside the closed-source plugin (which I assume is the case here?) then obviously it's only the plugin authors can debug it fully to see what going on.
Even if the fault was at our end, we can't magically see inside their code and know what we're doing that makes their code crash - they'd need to tell us what's going on for us to be able to help.