mysql-cluster: nodes forced shutdown problem (no replies)

Hi guys
I have been trying to migrate my data from an old mysql server to a new
mysql-cluster environ. The migration of databases went on without problems, but after a shutdown command was apply on the management server console, and the nodes with ndbd restarted, the following errors was seen on the console of the management server:

The following error occurs:
ndb_mgm> Node 2: *Forced* node *shutdown* completed. Occured during
startphase 8. Initiated by signal 0. Caused by error 2341: 'Internal
program error (failed ndbrequire)(Internal error, programming error or
missing error message, please report a bug). Temporary error ndb_mgm>
Node 3: *Forced* node *shutdown* completed. Occured during startphase 8.
Initiated by signal 0. Caused by error 2341: 'Internal program error
(failed ndbrequire)(Internal error, programming error or missing error
message, please report a bug). Temporary error and the nodes are shutdown.

How can one resolve this error 2341?

Could you please help me with this mess?

Appreciate your time!

KC