SAP Message Q6155 - A field name (position &3) is missing from the index &2

Diagnosis The index &V2& belonging to the information structure &1& is notcorrectly defined. In field position &V3&, the field name is missing. System Response No index will be created in the database and the information structurewill not be activated. Procedure Correct the index &V2&, then delete the table belonging to the infostructure &V1& (using transaction SARI) and reactivate the infostructure.