update 7.6.5. stop after upload zip

As a new user I like to try the upgrade procedure.
When I start the upgrade from admin menu I get a blank page after the zip upload saying:
ZIP Error(0): Status(0): Arhive(upload://SuiteCRM-7.6.5.zip): Directory(… /cache/upgrades/temp/4E7lfX)
No Next button to go further in the Upgrade
What is wrong here?