Ascii_graph python error

System : DEBIAN 8 VPS
python hackerbot.py
Loading aiml/std-startup.xml... done (0.01 seconds)
PARSE ERROR: Unexpected default <li> element inside <condition> (line 948, colum                                                                             n 0)
Loading aiml/standard/std-65percent.aiml... done (0.10 seconds)
PARSE ERROR: Unexpected text inside <random> element (line 16973, column 14)
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Loading aiml/standard/std-botmaster.aiml... done (0.01 seconds)
PARSE ERROR: Unexpected text inside <random> element (line 21309, column 14)
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PARSE ERROR: <condition> elements can only contain <li> subelements (line 879, c                                                                             olumn 0)
Loading aiml/standard/std-geography.aiml... done (0.04 seconds)
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PARSE ERROR: Unexpected text inside <random> element (line 2603, column 0)
Loading aiml/standard/std-profile.aiml... done (0.06 seconds)
Loading aiml/standard/std-religion.aiml... done (0.03 seconds)
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>> !twitter
**Try again, check your syntax. You can use !help command
>> !help
Linux privilege escalation checker --> !linuxprivchecker
Mimipenguin (Tool to dump login credentials) --> !mimipenguin
URL scan --> !urlscan <URL-TO-SCAN>
File scan --> !filescan <PATH-TO-FILE>
Shellshock --> !shellshock
Twitter account analysis --> !twitter @username
Linux enumeration --> !linuxenum
>> !twitter @[username]
Traceback (most recent call last):
  File "modules/tweets_analyzer.py", line 22, in <module>
    from ascii_graph import Pyasciigraph
ImportError: No module named 'ascii_graph'
>>
omergunal / hackerbot

Ascii_graph python error #4
