got the following error in the segmentation Job
"callStack": "java.lang.Exception: Field b2b not found within the struct () in schema\n\tat com.adobe.aep.unifiedprofile.dataprep.enricher.impl.tree.transformer.DataTypeResolver.getOutputType(DataTypeResolver.scala:189)\n\tat ...
"error-code": "UPPQL-013060-404",
"error-message": "Field b2b not found within the struct ()"
what would be cause of this error?