Have you tried restarting Minion? It's possible it was a small network interruption? It looks like Minion was able to get everything but the last bit?
Code:
<date>2014-08-05T16:59:00</date>
<millis>1407250740127</millis>
<sequence>19</sequence>
<logger>com.zam.minion.controller.MinionController</logger>
<level>SEVERE</level>
<class>com.zam.minion.controller.MinionController</class>
<method>loadGameData</method>
<thread>29</thread>
<exception>
<message>org.apache.http.ConnectionClosedException: Premature end of Content-Length delimited message body (expected: 14087; received: 14086</message>
Minion is multi-threaded so what is in the status message on the loading screen is not everything Minion is doing because its performing many tasks all at once.