This error — ERROR 22021 (character_not_in_repertoire): invalid byte sequence for encoding "UTF8": 0xd5 — means that your CSV file contains a character (specifically byte 0xD5) that is not valid UTF-8, even though the system is expecting it to be UTF-8 encoded.
We can likely fix this for you. Please send your file to hello@tricera.io referencing "ERROR 22021" in the subject line.