Based on the feedback, the following corrections need to be made to the 3D object:

1. Modify the object to resemble a pentagonal prism. This means the object should have a consistent cross-sectional shape along its height, with parallel top and bottom faces and uniform sides.
2. Ensure the lower part of the pentagon is rectangular. This might require adjusting the angles and sides of the lower part of the object to form a clear rectangle.
3. The object should be extruded uniformly in one dimension. This means the shape should not change along its height, and it should appear as a simple extrusion of the base shape.
4. Make sure the base of the object is a pentagon. This might require adjusting the angles and sides of the base to form a clear pentagon.