This sounds as if the nozzle is too close to the bed. Re-level the bed with a (thicker) piece of paper or with a feeler gauge. Alternatively, increase the height of the nozzle by re-defining the height or add an extra Z raise in the slicer (see question: "How can I add an offset to the first layer to increase clearance?").

Without images of the problem it is difficult to diagnose, but, the described symptoms sounds as if the nozzle is too close to the bed. If the nozzle is too close to the bed, and the extruder not strong enough, the filament flow is very limited due to pressure caused by a very small opening between the nozzle and the bed. Skipping of the extruder may wear out (grind) the filament and stop extrusion altogether.

Re-level the bed with a (thicker) piece of paper or with a feeler gauge. Alternatively, increase the height of the nozzle by re-defining the height or add an extra Z raise in the slicer (see question: "How can I add an offset to the first layer to increase clearance?").