Threadom CONFIGURATE.pl file, line 31

Hello,

Line 31 in the CONFIGURATE.pl file from the ThreaDom package is:
my $pdball_path = $CONFIG{'PDBALL_PATH'};

Shouldn't it be instead:
my $pdball_path = $CONFIG{'PD_BALL_PATH'};

As in the config.ini file line 5 is as follows:
pdb_all_path="/home/zhidongx/share/I-TASSER2.1/PDB"

Maybe vice-versa then? And should the "pdb_all_path" point to the "I-TASSER2.1/PDB/" folder?

Also what is the "Data_dir_base =" (Line 11 in config.ini) for?

Thank you once again for your time!