'Execution failed: Data storage error' on setProperty

Question

On a script which has been working fine for some time and unchanged, today I get

'Execution failed: Data storage error'

on a line which consists simply of:

PropertiesService.getScriptProperties().setProperty('runMode', 'LIVE');

What can I do to fix this?
Is this some kind of server error?

Answer 1

It's an error from Google. An issue as already been submitted, you can upvote it (click the star in the title) : https://code.google.com/p/google-apps-script-issues/issues/detail?id=6856

[EDIT] Seems to be up and running now.