The "Java-Lang Null Pointer Exception" is a common error in Java applications that occurs when a program attempts to use an object reference that has not been initialized. To resolve this, ensure that all objects are properly initialized before use. Check the code where the exception is thrown to find and fix any null references. If this error occurs in the "Calendar Creator Deluxe" program, it might be due to a bug in the application. You may want to contact the software's support team for assistance or look for updates or patches that address this issue.
