fixed error caused by experiment with no title
fixed error caused by experiment with no title

janez87/social-knowledge-extractor,DataSciencePolimi/social-knowledge-extractor,DataSciencePolimi/social-knowledge-extractor,DataSciencePolimi/social-knowledge-extractor,janez87/social-knowledge-extractor,DataSciencePolimi/social-knowledge-extractor,janez87/social-knowledge-extractor