Hi and welcome.
Yes, you might have been surprised to see all the notifications, on Tuesday.  This is caused by a problem with the current version of the On Wheels app: when people use this app, the data they collected goes to OSM… but erases everything else, which makes the map unusuable because existing data about shops such as opening hours, website or phone number disappears.  So we had to clean every edit one by one.  We are in contact with Robin and the devs, to see how to fix their app as soon as possible.
Your contributions are welcome, and as you can see, we restored previous data from the backups, while merging it with the valuable data you collected.
Have a nice day.