The problem is that you don´t have free space in the operating system. You must click CTRL + ALT + F1 in the main login Kali screen to loggin in terminal. Use the same credentials. Then you write df -h to see the free space.

If you have all the space full then you must delete files and folders using rm (with the flag -r to recursive delte). After that you must delete the Trash with the command: rm -rf /home/kali/.local/share/Trash

I would like to know how many passwords I need to create a wordlist, the permutations before create the wordlist. For example if I want to create a wordlist from 1 to 9 there are 9 passwords, very easy, but if i need create a wordlist with all the permutations about aaaaa to zzzzz.

Are there any tool or script?