WikiTask error

Error: java.lang.NullPointerException

Stacktrace

java.lang.NullPointerException
	at com.bitplan.mediawiki.japi.SSLWiki.(SSLWiki.java:122)
	at org.sidif.wiki.SSLWiki.(SSLWiki.java:51)
	at org.sidif.wiki.SSLWiki.ofIdAndUser(SSLWiki.java:114)
	at org.sidif.wiki.SSLWiki.ofId(SSLWiki.java:127)
	at org.sidif.wiki.WikiTask.prepareWiki(WikiTask.java:455)
	at org.sidif.wiki.WikiTask.call(WikiTask.java:1100)
	at org.sidif.wiki.WikiTask.call(WikiTask.java:1)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)