Maplestory v83 MySQL column and nullpointerexeptions errors

Hi, I've been trying to fix this error for weeks everytime I fix the error I get annother First it was
an unknown column "donor" I fixed it then it was "votepoints" I fixed it to and now i get annother error.
Java.lang.NullpointerExeption


Please people from MPGH help me via TeamViewer I would really appreciate that

Have you installed java correctly?
Try to remove java 8 and install java 7 or 6

Java 6 works for me, not the other versions