Is the cart itself working? It appears you have contact issues. Wipe the contacts and reinsert the cart, then try again.
Here again:
[DEBUG]: Sending cmd: 99 01 04 00 00 00 00 00
[DEBUG]: ROMCNT = 0xA7180000
[DEBUG]: Sending cmd: 68 00 00 00 00 00 00 00
[DEBUG]: ROMCNT = 0xA7180000
[DEBUG]: Sending cmd: 99 01 04 00 00 00 00 00
[DEBUG]: ROMCNT = 0xA7180000
[DEBUG]: ** Card reset **
[DEBUG]: Sending cmd: 9F 00 00 00 00 00 00 00
[DEBUG]: ROMCNT = 0xAD180000
[DEBUG]: Sending cmd: 90 00 00 00 00 00 00 00
[DEBUG]: ROMCNT = 0xAF180000
[DEBUG]: Read chipid = 7C2
[DEBUG]: Sending cmd: 00 00 00 00 00 00 00 00
[DEBUG]: ROMCNT = 0xAC180000
[DEBUG]: Read header; state = { game_code = 0x45363741, hdr_key1_romcnt = 0x001808F8, hdr_key2_romcnt = 0x00416017, key2_seed = 0x0 }