Protected by App-Serrre?

Yesterday I upgraded my Huawei phone to a new version. Since then, I no longer see the chats on WhatsApp when I click on the 4eck at the bottom right

How do I get this away so that it is no longer protected by App-Serrre

The app lock can be disabled in the settings of Android. Where Huawei hides it exactly I do not know. Either you look through the settings for logical places or you use the search in the settings.