Hi and sorry for the confusion.
The error you are getting is telling you that you have a Thinware vBackup 4.0 license and you have Thinware vBackup 5.0 installed.
If you requested a Standard (free) Edition license you would have a received a Thinware vBackup 4.0 license. This is because Thinware vBackup 5.0 does not currently support Standard Edition licensing.
The Configure Licensing screen reports the version of the license you have installed. This is what you are seeing. The Configure Licensing screen is not reporting the version of Thinware vBackup installed. You would get the version of Thinware vBackup that is installed by going to Help > About Thinware vBackup.
Suggested resolution:
If you need a free backup solution and are running VMware vSphere 6.0 or older please download and install Thinware vBackup 4.0. The license you requested will work for this.
If you are running VMware vSphere 6.5 or newer please request a trial license for Thinware vBackup 5.0 and assign an Advanced or a Professional license to your host servers in Thinware vBackup. This would not be a free solution, but hopefully our discounted pricing will work within your budget. Trial licenses for vBackup are configured with unlimited entitlements for all three vBackup editions and work with both Thinware vBackup 4.0 and Thinware vBackup 5.0.