"0.0.0.0" is an alias to "all interfaces of the local machine". So failure to bind to "0.0.0.0:8555" means the program cannot open the port on your local machine (so the problem is on the local machine, not on an external gateway).

There generally could be two reasons: 1) That port is already opened by some other program; 2) you have a general problem with access to ports (or to any network resources) on that machine. The first assumption could be resolved by running TCPView and checking whether you have any program bound to the ports in question; the second assumption could be checked by the same TCPView - to see if you have ANY program successfully bound to ANY port on that machine. In any case you would need to use TCPView.

Not sure what could have been broken by using bcdedit, but you might have screwed the networking engine on that machine somehow. TCPView might show whether you have any program successfully using the networking stack, especially whether there is any kind of server program running.

Not sure why BitCore could be using HTTP server... But anyway, disabling "listen" is more of a workaround than a solution, as there is something wrong with that PC, which could manifest in different way, so it should be fixed instead.

Did you try to check who is using the port 8555? TCPView (https://docs.microsoft.com/en-us/sysinternals/downloads/tcpview) should show it. You may have some kind of malware, which is using multiple ports on your PC. Or just the opposite - a new antivirus, which is blocking all the ports.

Your wallet shows bind error 10013.

The first easiest thing I would try is to reboot the machine to release ports - if you didn't do that already, of course. If you did, then see https://stackoverflow.com/questions/3314656/what-causes-tcplistener-socket-error-10013

in particular it tells (though there is more info there):

My qt-wallet runs without problems. Are you using the current version 0.90.9.7? If not, update your wallet to the latest version and check if the wallet is running again. 

https://github.com/LIMXTEC/BitCore/releases/tag/0.90.9.7

The question is how high was the SCAMMER who made that fake "team" on website of this shitty project ? 

I made a screenshot for safety purposes :

https://drive.google.com/file/d/1W9UpT8_KLU3uiCSMcK2bnEdxC0j-YCM-/view?usp=sharing

What we have here ?   Alice Mattew ?!   What sort of lastname is that ?  There is no such surname as far as I know .. but maybe your naive followers form third world don't know about it...
Her Twitter account: https://twitter.com/AL1CEbtc    ..

We can clearly see she (i bet its just a fake person) is shillin for many Shitcoins on her Twitter account.
Like Allsafecoin  ... just check it : https://twitter.com/Allsafecoin    Graphic design looks familiar to lightbit fans ?     Maybe it's just a coincidence...


Let's see what else you have here :

James Stewart - Lead Dev ...  We have a linkedin profile where he claims :

"I have spent many years as a Fitness Professional. I have since decided to transfer to the Mental Health field. I am also an Indie game developer."   Very promising ...  His Black Page studios  didn't launched ANY title EVER !!! despite it runs it for 7 years now ...  Maybe he should change his brand to Black Pants Studios ... cause everything what he is doeing is shitting in his pants instead ...  Or wait ...  Maybe its just a fake person ?! 

Let's go further :

Ayo Telufusi  ... Another weird (probably fake) person ... shilling shitcoins on Twitter account https://twitter.com/mrgrow2k and retweeting Alice tweets...

And then we come to Joe Land ... nice short , catchy name ... shame it's fake  and his serious avatar with fantasy squirrels makes im instantly trust that man !

Good luck lightbit investors ... may the god have mercy on your soul (and wallets)

https://github.com/LIMXTEC/BitCore/blob/master/doc/build-unix.md

Or just download https://github.com/LIMXTEC/BitCore/releases/download/0.90.9.6/bitcore-x86_64-linux-gnu_qt5-dev.tar.gz and run bitcore-qt