Hello,

since the update to the version Version 3.1.0 + 180124 I have the problem, if I change something in an existing survey and this memory always the expiration date is set to 20.08.2002 02:00.

If I then set the correct date with the expiry of the current survey for this still appears: This survey is currently not active. You will not be able to save your responses.

How can I fix the problem?

Looks like a bug. Please report it via the bugtracker.

that's extremely strange indeed..
please open a bug report so we'll try to reproduce.

I have do this for two days

bugs.limesurvey.org/view.php?id=13255