Here I am again...

So I have waited out my 7-day trial and attempted to connect online, which resulted into error 60000.
Now I understand I need to register my profile (FC) via wiimmfi.de, but the thing is I just can't get to be online in the first place.
I may sound like a total noob in this (this is my first time joining a community server on a nintendo console, so yes I am), but can anyone explain to me what I can/should do?
The word 'profiles' here also makes me confused, does this imply the save file you have made?

Thanks in advance,
Reboot

A new profile works, but I'm unable to use the friend code of my own profile. I wouldn't like to unlock everything again, so is there a way I can use my own profile for this?

On the first place, you mentioned


So instead of registering using a FC, I need to use my console's ID? where can I find that?
Again, sorry for being such a newbie

Ah, okay. Thank you Leseratte for helping clueless noobs like me.
Please mark this thread as solved as I know what to do from now.

EDIT: How long does it take for my console to be successfully registered? I still am unable to sign in from my main profile

Unfortunately this didn't work-- I still get error 60000...

Edit: this might conflict with another old Wii I tried to register-- of course I realized that that resulted in a console registration denial, but that wii had the exact same profile information at that time.This may or may not be the issue.

There is no boot.elf image on the Wiipid Extractor page so I am unable to run that from HBC.

Somehow my HBC does not recognize it. I'm going to troubleshoot on that.
EDIT: I shouldn't be hasty. Accidentally extracted the files to the root of my SD card rather than the apps folder. My fault.

Yes, I know. Extracted it wrongfully, my fault.
Codes (along with other saves I never even use anymore) have been sent, I hope to have my MKW FC added ASAP.
Thanks again for your help.
The check page is located at maschell.de/pidtool.php?check=702409142