Unable to upgrade to OS Catalina from Mac OS Sierra 10.12.16

Why do I alway get the message "the recovery server could not be contacted"

when I'm trying to upgrade to OS Catalina.

And I get this in the installer log:

Jun 3 18:19:12 Fadis-MBP osinstallersetupd[32171]: osinstallersetupd registered client

Jun 3 18:19:12 Fadis-MBP osinstallersetupd[32171]: OSISSoftwareUpdateController: Failed to load catalog https://swscan.apple.com/content/catalogs/others/index-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog: Error Domain=MSUProductManagerErrorDomain Code=51 "(null)" UserInfo={NSUnderlyingError=0x7ff637f44910 {Error Domain=MSUDataDownloaderErrorDomain Code=2 "(null)"}}

Jun 3 18:20:12 Fadis-MBP osinstallersetupd[32171]: OSISPredicateUpdateProduct: Incompatible Apps List: Timed out loading catalog

Jun 3 18:20:12 Fadis-MBP osinstallersetupd[32171]: OSISPredicateUpdateProduct: OS Installation Payload: Timed out loading catalog

Jun 3 18:20:12 Fadis-MBP osinstallersetupd[32171]: OSISPredicateUpdateProduct: OS Installation Payload: No products found.

Jun 3 18:20:12 Fadis-MBP osinstallersetupd[32171]: OSISPredicateUpdateProduct: Incompatible Apps List: No products found.

Jun 3 18:20:12 Fadis-MBP osinstallersetupd[32171]: Failed to find incompatible apps list on software update catalog

Jun 3 18:20:12 Fadis-MBP osinstallersetupd[32171]: Predicate update product fetch failed with error: Error Domain=com.apple.OSInstallerSetup.error Code=300 "The recovery server could not be contacted." UserInfo={NSLocalizedDescription=The recovery server could not be contacted.}