I need help with hashcat masks

[Snoopy]

your command line is wrong, your are mixing a wordlist attack with a mask attack which doenst work (at least in your wanted attackmode -a3 which means plain bruteforce)

try

hashcat.exe -m 0 -a 3 -O 48bb6e862e54f2a795ffc4e541caed4d ?l?l?l?l