"If you specify a custom charset, you must also specify a mask."

[philsmd]

It's important to understand how your command line interpreter/shell works and what characters are special.
You can use a charset file and put your custom charset within the .hcchr file.
Alternatively, you could try to escape the special characters. It's not a problem with hashcat, but your shell/command line is already trying to interpret the special chars (before hashcat even sees the chars).