ARBCA has changed its name to CBA (Confessional Baptist Association). Their old website does not always forward to the new website. Note: IRBS has also changed its name to International Reformed Baptist Seminary in 2022.
On the Internet Archive, it records the redirection as beginning in August, 2022 (https://web.archive.org/web/20220000000000*/https://www.arbca.com).
ARBCA transitioning to CBA on Sermon Audio (https://www.sermonaudio.com/source_about.asp?sourceid=arbca or https://web.archive.org/web/20220923175846/https://www.sermonaudio.com/source_about.asp?sourceid=arbca).
IRBS announcing its new name on FaceBook (https://www.facebook.com/photo.php?fbid=344464634387445&set=pb.100064717324947.-2207520000..&type=3).