Error while searching as "source_data" [] is illegal


I am using Milvus for face recognition application. I have created embedding using VGG Facenet model. Saved the embedding into the Milvus database by creating two fields idd(Person idd in int) and encoding(datatype as FLOAT_VECTOR, dim=128). While searching for a face embedding i am getting error like source_data value [[1.6030733585357666, -0.7914620637893677, 1.32949697971344, 0.3023510277271271, -0.21296903491020203, 1.0632777214050293, 0.41221651434898376…] is illegal. Please help me how to get over to this error.