IS does not start: NoClassDefFoundError: wm/server/BundleUti

Hello,

I have installed Integration Server and broker 6.0.1 + SP1 + fixes 1 to 19.

When I try to start IS I have the following errors:

java.lang.reflect.InvocationTargetException: java.lang.NoClassDefFoundError: wm/server/BundleUtil
at wm.server.nsimpl.syncToNamespace(nsimpl.java:569)

com.wm.app.b2b.server.ServiceException: java.lang.NullPointerException
at com.wm.app.enterprise.admin.startup.setPackageACLs(startup.java:231)
at com.wm.app.enterprise.admin.startup.initialize(startup.java:144)

What did I forgot?

Thanks in advance.