Changes since SOA version
IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.
Not an apex domain
The domain lb-jf23i1oa-kshw0q4da2xv7uzj.clb.ap-bangkok.tencentclb.com. is not the root of its zone.
Instead, try zone transfer on tencentclb.com .
Instead, try zone transfer on tencentclb.com .