The menu doesn't work on Kali

[akavjik]

After selecting digit from main menu, the program dosn't go to the sub menu items, but has been trying to check main menu elements.
console output:

ot@eepc:/opt/katoolin# ./katoolin.py


$$\ $$\ $$\ $$\ $$\ 
$$ | $$ | $$ | $$ |\__| 
$$ |$$ / $$$$$$\ $$$$$$\ $$$$$$\ $$$$$$\ $$ |$$\ $$$$$$$\ 
$$$$$ / \____$$\ \_$$ _| $$ __$$\ $$ __$$\ $$ |$$ |$$ __$$\ 
$$ $$< $$$$$$$ | Kali linux tools installer |$$ |$$ |$$ | $$ |
$$ |\$$\ $$ __$$ | $$ |$$\ $$ | $$ |$$ | $$ |$$ |$$ |$$ | $$ |
$$ | \$$\ \$$$$$$$ | \$$$$ |\$$$$$$ |\$$$$$$ |$$ |$$ |$$ | $$ |
\__| \__| \_______| \____/ \______/ \______/ \__|\__|\__| \__| v1.3b

+ -- -- +=[ Original project: https://github.com/LionSec/katoolin | LionSec
+ -- -- +=[ 325 Tools

1) View Categories
2) Update Katoolin
3) Help

4) Exit

: katoolin > 3
: load=<category> Load category
: search=<tool> Find tool
: clear Clean screen 
: 1, show Show categories
: 2, update Update katoolin (git pull)
: 3, help Show help
: 4, exit Exit katoolin
: katoolin > 1

:: Categories:

1) Information Gathering 2) Vulnerability Analysis
3) Wireless Attacks 4) Web Applications
5) Sniffing Spoofing 6) Maintaining Access
7) Reporting Tools 8) Exploitation Tools
9) Forensics Tools 10) Stress Testing
11) Password Attacks 12) Reverse Engineering
13) Hardware Hacking 14) Extra

: katoolin > 3
: load=<category> Load category
: search=<tool> Find tool
: clear Clean screen 
: 1, show Show categories
: 2, update Update katoolin (git pull)
: 3, help Show help
: 4, exit Exit katoolin
: katoolin >

[swarupsro]

use command like: load=1

better watch this video : https://youtu.be/suEOFVsUXO8