Today, CL behaved weirdly in production. Some people encountered problems creating or updating campaigns/pages/logs/entries. Wrong table permissions in the database caused this. I fixed the permissions now.
Please "Clear Cache and Reload All." You might see your created stuff four times instead of once. Please delete the duplicates.
If you are missing any old data, please create a ticket and give us a hint of what you are missing.
All data is backed up constantly, and nothing is lost.