Issue when running python main.py

[nhantruc03]

Dear authors,
I followed the Installation Instructions, when i run python main.py with dataset='twitter4j' and package_name='twitter4j', it worked perfectly. But when i changed to other dataset and package_name, for 'camel', it still worked but get less mined files (56) than your result (152), with drools, mined files is 0, and with 'webobjects' i got issue in below image.

Do you know what cause these issues ?