DKIM is marked yellow "INVALID"...

Please help, I have a CWP server (AL 9.6) installed, with one user who manages several domains...

I have followed all the instructions given here for setting up DKIM, all domains have a DKIM record, but when I go to the Email - DKIM Manager menu in the list where the domains are selected in the DKIM records column, all are marked green, only the domain that is associated with the user is marked yellow "INVALID"...
This domain is with the Internet provider where the server is located, in the DNS he has set a DKIM record, which I have also set in the domain settings, the two match - checked, all mail services have been restarted, but again the mark for this domain is yellow "INVALID"...

I also tested with a mail checker, for all other domains DKIM works and is recognized, for this domain it is again unrecognized...

Please advise, what should I check or do?

BR
Venty

Please advise the following:

What distro are you running CWP on?

Public or NAT?

Is the domain name pointing to that server? Or is pointing elsewhere?

Here is a good DKIM Tester: https://dmarcian.com/dkim-inspector/

Without the domain name, it's kinda hard to tell you where the problem may be.
You can PM it if you wouldl ike, and I can run some tests as well.