Hi Kern,
I apologize for the highly late answer 🙁
For whatever reason, your comment never reached me. Sorry.
Nevertheless, the problem is solved. I am now restarting my aaPanel experience and found it works. The only thing I have done is update my IP in the SYS Firewall plugin. Port 3306 was already opened.
Not sure if this was the problem because time passed doesn't let me remember it, but it works in any case.
Thanks a lot, and sorry again.
All the best
Ricardo