LinkedIn have changed their json format
So the code on line 212 no longer works:
data_picture = "https://media.licdn.com/mpr/mpr/shrinknp_400_400%s" % c['hitInfo']['com.linkedin.voyager.search.SearchProfile']['miniProfile']['picture']['com.linkedin.voyager.common.MediaProcessorImage']['id']
It should be replaced with:
data_picture = c['hitInfo']['com.linkedin.voyager.search.SearchProfile']['miniProfile']['picture']['com.linkedin.common.VectorImage']['rootUrl'] + c['hitInfo']['com.linkedin.voyager.search.SearchProfile']['miniProfile']['picture']['com.linkedin.common.VectorImage']['artifacts'][3]['fileIdentifyingUrlPathSegment']
The [3] is the highest quality 800x800 but could be replaced with [0],[1] or [2] for lower quality images.