Unable to install applications via application manager

Hello,

I'm trying to install Filezilla from the application manager and I'm getting the error:

Detailed errors from the package manager follow:

installing not available

I'm not sure if this is due to me being on a trial license or if there is something else I'm missing, but haven't been able to find much information from searching the web on the error. I've tried a few other applications and I get the same error. I've also tried running the install as root, same issue.

Thanks,