Extruder problem

I have a problem with the extruder of my printer. With the 0.4 pointer it seems as if it obstructed when I try to print something. This did not happen to me before, nor does it happen to me with 0.6 (with 0.2 I have not tried it but I’m sure it would also obstruct)

The nozzle is blocked, you may need to replace a new one