If you don't mind me asking how long has your exchange been running for?
It seems its rather new.
Domain Name: ALTMARKETS.CC
Registry Domain ID: 136630213_DOMAIN_CC-VRSN
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: http://www.namecheap.com
Updated Date: [b]2018-07-10[/b]T15:57:36Z
Creation Date: 2018-07-10T15:22:40Z
Registry Expiry Date: 2019-07-10T15:22:40Z
Registrar: NameCheap Inc.
Registrar IANA ID: 1068
Registrar Abuse Contact Email: abuse@namecheap.com
Registrar Abuse Contact Phone: +1.6613102107
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1.DIGITALOCEAN.COM
Name Server: NS2.DIGITALOCEAN.COM
Name Server: NS3.DIGITALOCEAN.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: [b]2018-10-05[/b]T10:03:47Z <<<