Error starting Update WIZARD, Confirm Layouts set

Hello, i just want to install the brand new suitecrm 7.5 Update.

After opening the upgrade wizard the screen looks like shown on the screenshot.

When i am clicking “next” i am getting a timeout after ~20 sek.

i am not able to install the new SuiteCRM 7.5 does anyone have an advice? Will be awesome to get the new version.

Thank you very much!