ORBIT-USER: same DB error over and over

[Andrea G. Forte]

Dear all,

when I do an experiment, at the end of it I always get the error:
ERROR run: ServiceException: ServiceException
        Table 'sendergroup_otg_senderport' already exists

I am using a script with "defNodes('sendergroup', [[1,4],[1,5],[1,6]])" 
but I am not sure what the problem is.
Any help on this is really appreciated since I cannot go on with my 
experiments.

Thanks a lot,
-Andrea