You have a C2-License, so start your layout in debug mode.
Select the player sprite object. It should be marked with a red box around it. If you don't see the red box, the sprite's position is not within camera view.
If you see the box, but no sprite is shown, check:
the player sprite objects opacity, visibility, frame, animation, layer.
If opacity is 0, you will not see it.
If visible is false, you will not see it.
Check in the editor if the current frame of the playing animation contains a visible image.
Check the point of Origin - maybe it is far off the edges of your character's image and thus your sprites position is way off.
Check if other objects share the layer with the sprite or are on a layer above the player sprite and if so, if they could overlap it (Z-Order).