update search 
Searching is up again. It seemed to be caused by some lock file (commit-lock) within the Database index directory. After clearing and restarting search was successful again - so is my mood :)
Caused by: java.lang.NullPointerException
at org.snipsnap.snip.SnipIndexer.search(SnipIndexer.java:144)
at org.snipsnap.snip.SnipSpaceImpl.search(SnipSpaceImpl.java:209)
… 97 more
looks 
I have changed that website's looks. Red/Orange has moved to become green. So at least something changes - even if the content did not in the past...
But somehow the Search function is not ok anymore. It broke and I do not know the reason yet.
Spamming has also increased a lot and I think, I should move some 'valuable' content to some static place and remove that log…