rp_tags error: error: invalid character '<' looking for beginning of value

[lf1029698952]

when I execute rp_tags commands

harborctl rp_tags -d 60 -m 10 --dry-run

but get error: "error: invalid character '<' looking for beginning of value" every time, and scan error images position not be one.

it looks like json format error, how to debug it.

harborctl version: 1.1.0
harbor version: 1.7.1