Are these two errors even related? Are either of them related to the fact that your weblogic instance is unresponsive?
Was the weblogic instance ever responsive? If so, what have you changed since then? If not, exactly what are you attempting to do?
Since we don't have access to the same information you have, you need to give us enough details that we can diagnose what is going on.
see this FAQ
for some hints on what we need to know.