Installing Defender - Server error status: Internal Server Error [500]

HI,

I get this error when trying to install Defender: Server error status: Internal Server Error [500]
https://screencast.com/t/tzhJ7tSWFS
I recently migrated to a new host so its possible some settings in Wordpress are not correct.

I have tried to remove and then reinstall the Dashboard.
I get the same error with other plugins.

Support access is granted.

Thanks for you help.

Justin