error about udemy-dl

[riazXrazor]

it just occured once, is it reoccuring, and
what is ur OS ?

[IbrahimJakmour]

my os is arch linux antergos ,,i used udl before on windows not yrs another it work fine and download all files and videos then it was outdated , so on my arch i used npm install udemy-dl one month ago it work fine and all was good except it download only videos and skips the files . if u enter the commend udl -u blabla -p balabla url it gives error ,, so i must enter -u then enter -p then it gives me list of all my courses ,,i like when i write 1 command and i wish it can download every thing
and btw its a great tool thank u