Can you run Yappari manually (type in terminal: /usr/bin/Yappari) and then click on Create Chat and paste me the last few lines? Because it's very weird that it crashes like that.
Network activated: ae4e4860-c301-43c8-b790-ff709ded604a Chunk received Processed chunk of 98 contacts Chunk received Processed chunk of 80 contacts User has quit the application Application destroyed QSqlDatabasePrivate::removeDatabase: connection 'roster.db' is still in use, all queries will cease to work.