Extruder SV07

Good night dear!
My SV07 Plus printer is not loading the filament, it stopped out of nowhere.
Has anyone ever experienced this?
Yours sincerely,

Did you have it running for awhile with filament loaded?

Take the extruder off and disassemble the hotend there is probably a small piece of filament jammed in the throat of the top of the hotend.

Gives you a chance to lubricate the extruder gears and clean them up too.

What can you use to lubricate the gears?