The error 'Remote license not found' happens when server cannot connect to the License Manager or number of servers used for the particular environment exceeds the maximum allowed by the license.
I would make sure
* The license Manager in Denodo Solution Manager is running and accessible on the port 10091.
* The Denodo server is assigned to the correct environment in the Solution Manager.
* If there are too many servers for one environment than specified in the license, disable one of the previous servers to use the new server.
For more details, you can refer to [How Licenses Work](https://community.denodo.com/docs/html/browse/7.0/solution_manager/administration/license_management/how_licenses_work/how_licenses_work) of Solution Manager Administration Guide.
Hope this helps!