Please check your phone for the following apps and if you have any of them installed I urge you to remove them immediately as they have been confirmed to contain Malware.
If you have these apps on your phone, you will be able to uninstall by going to Settings > Apps & Notifications > See all apps, then tap on the app and hit the uninstall button. Here, even hidden apps should be shown.
Check out the list of the apps below:
Yobit trading Encontre Mais Motocycle Road 2DInsight Photo EditorCell CameraPledge CleanMentor SecurityCompose CameraDisplay WallpaperGreen Camera
Please let me know if you need any help with this or anything else.
Thanks and have a great weekend,
Incognito Privacy Care