Hello im Carles Tubio (admin of solo.mining-pool.io),

issue saddly confirmed, im taking down the solo pool NOW and will investigate the issue this weekend.

will post soon at:
https://bitcointalk.org/index.php?topic=1675588.0
https://bitcointalk.org/index.php?topic=104664.msg16840084#msg16840084

Thank you for the private message organofcorti !