Hello and Welcome to OpenStreetMap :)

the app you're using allows you to edit the very database it relies upon. So please be careful when you use the feature to add POIs.
Here you added an attraction (the Mosque) which is already well mapped so I took the liberty of removing this double entry from the map again. 

If you're interested in contributing to the map, there are better ways and the community will be happy to help you with that.

safe travels
silversurfer83