1.48.00 backup leads to empty screen

[Ralf]

When going to "Backup/Import" and then clicking the button "save data", the page "../process/backup.php" is loaded, but it is empty.
Nothing happens.

[soplanning]

Can you check in your PHP logs ? there's maybe a blocking error, not displayed

[Ralf]

I have discovered this issue on my test installation as well as on your demo:

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[soplanning]

You're right, our demo is now updated.
You need to install library "php-zip", so it will work.
Best regards