Filament may be tangled or stuck

Hi all, i cant print since 1 week ago, always get the same error screen. I followed the wiki solutions but the error continues. Can someone help me please? Thank u so much!

English

This also happens to me without using ams, so I understand that it is not an ams problem. It also happens to me with a new and recently opened filament…

It happens when the toolhead can’t pull filament. It is either a tangle in the filament spool or a blockage of some kind at the toolheaed. I have been using ESUN but latelly the spools seem to not have been spooled properly. Also cardboard spindles seem to make it more likely that filament will get stuck. Try undoing the spindle and spooling it yourself.

My lasted eSun carboard spool had the full last layer of filament glued to the spool cylinder. It looks like they spool the filament before the glue has set.