bulbea crashes when executing "share = bb.Share('YAHOO', 'GOOGL')" in python2.7

[realPaulTec]

Hello, today I attempted to install the library and run into an issue.
after importing bulbea with >>> import bulbea as bb everything seamed normal but when trying to run
>>> share = bb.Share('YAHOO', 'GOOGL')
I get this following error:
Traceback (most recent call last): File "<stdin>", line 1, in <module> File "bulbea/entity/share.py", line 166, in __init__ message = Color.warn("Environment variable {envvar} for Quandl hasn't been set. A maximum of {max_calls} calls per day can be made. Visit {url} to get your API key.".format(envvar = envvar, max_calls = QUANDL_MAX_DAILY_CALLS, url = ABSURL_QUANDL)) TypeError: unbound method warn() must be called with Color instance as first argument (got str instance instead)
Now I have no clue what exactly went wrong or why it isn't working, can someone help me with this?