This is caused by lack of permissions during the install. You can also find a similar error within the Reporter log "schedulingservice.log".
ERROR 1932 5 EXCEPTION: Cannot open database "VeeamReporter" requested by the login. The login failed.
Login failed for user 'YourUserName'.
ERROR 1932 5 EXCEPTION: Access to the path is denied.
Machine Name: 'YourReporterServer'
IP Address: 'xx.xx.xx.xx'
Current User: 'YourUserName (same as above)'