From Iceland: https://github.com/iceland2k14/kangaroo

You haven't "keyspace 10000000000000000:1ffffffffffffffff" and you haven't also "-p 0230210c23b1a047bc9bdbb13448e67deddc108946de6de639bcc75d47c0216b1b"

In python, main function:
run_puzzle(48, '0291bee5cf4b14c291c650732faa166040e4c18a14731f9a930c1e87d3ec12debb', dp=8, herd_size=1024)

I can uderstand, maybe, you put this on main function
run_puzzle(65, '0230210c23b1a047bc9bdbb13448e67deddc108946de6de639bcc75d47c0216b1b', dp=8, herd_size=1024)
result:
...
Ops: 131672064 Table size: 514265 Speed: 167818 ops/s
...
not Scanning Range like you write

Maybe I don't have your version or maybe you use bsgs from iceland
if you use that bsgs version:
python bsgs_dll_search.py -b bpfile.bin -bl bloomfile.bin -p 0230210c23b1a047bc9bdbb13448e67deddc108946de6de639bcc75d47c0216b1b -keyspace 10000000000000000:1ffffffffffffffff
If you do that, than you got:
============== KEYFOUND ==============
BSGS FOUND PrivateKey  0x1a838b13505b26867
======================================
Search Finished. All pubkeys Found !