Over 250,000 users have possibly been compromised in a data breach.
A user in a hacking forum is selling what they claim is over 250,000 emails, passwords, and possibly more.
I personally redacted the image shown, but the original post on the breach forum shows the full emails and passwords, and they have been verified to be from TexasGunTrader.com
Change your passwords immediately, for this site and anything else you may have used that same password for.
Also, change the email associated with your account if you have a secondary email to use.
It is very likely that hackers will attempt to verify if those passwords work with any other accounts associated with those emails.