Diagnosis
You entered a new field in the AUTH structure. However the fieldalready exists.

Procedure
Please use the existing field or create a new one with another name. Donot change the existing field, especially if you have not created it.If you have created the field yourself and want to change it, firstcheck whether there are objects that contain this field. If so, youneed to delete the objects first (if the objects concerned are not yourown objects, first contact the developer).