@Kinggene first You run apt-get install python-dateutil from terminal with root privileges. then You have to delete *.db file from /home/user.wazapp folder, then You download zip from github, and extract it on Your pc. now zip only /client folder with all subfolders. then transfer that zip file into /opt/waxmppplugin/bin/wazapp folder and extract it there overwriting the old files. Then open terminal with root privileges, go to the same folder and execute "chmod 777 *"... that should be it.