How to change camera view back to perspective mode?

My camera is currently stuck in two Vectors. It was originally showing three vectors x,y,z as I edited my scenes. The original settings had the gizmo icon with x,y,z and underneath it it said perspective. Now I’m only able to change between bottom ,top, and right.

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The Z axis ( the blue cone) is currently not visible because it is pointing at you / is hidden behind the midedl box.
The Text perspective is only visable if you are not matching any of the alinged positions like front back left ritgh up or down.
You just can hold the alt(option) key and drag with the left mouse button pressed to rotated freeley.