(Error) Help with using Hashcat
Hello to the hashcat community

I need help

First, my original language is not English, that's why I am using google translator

I am not an advanced user, but I need help with a key from a ".RAR" file

The key is: $RAR3$*0*c9xxxxxxxxxx5f90*044d2e504xxxxxxxxxxf890c1cced438

I downloaded "Hashcat" and followed the steps of some tutorials, but when putting the command line, the program says "Custom-charset 1 is undefined"

I do not know exactly how to handle the commands, I will admit that I do not know how this program works

The command line that I put in was: "hashcat.exe -m 12500 -a3 $RAR3$*0*c9xxxxxxxxxx5f90*044d2e504xxxxxxxxxxf890c1cced438 ?1?1?1?1?1?1?1?"

Does anyone know what to do? I thank you all
You are using ?1 in your mask without defining ?1. Either stick to the existing charsets or define ?1. https://hashcat.net/wiki/doku.php?id=mask_attack