Sorry, I have no experience with the coin in question, but this looks funny to me.
worldcoin.conf:
listen=1
server=1
txindex=1
rpcuser=worldcoin
rpcpassword=worldcoin
rpcallowip=0.0.0.0/0
rpcbind=0.0.0.0
addnode=....
Try removing
rpcallowip, or comment it out by starting the line with a hashtag (#) like this:
#rpcallowip=0.0.0.0/0
And for
rpcbind try pointing that to
localhost or
127.0.0.1, like this:
rpcbind=127.0.0.1
or
rpcbind=localhost