damn, I just checked your link and my MN is not found.

okay, lets do a quick check.

I have my IP - I checked it here: https://www.iplocation.net/find-ip-address

I have a wallet and sent 2500 coins to it. I have the following config file and I could start my Masternode successfully.
Do you see some mistake in my config file?
What about that rpcport=48844? Should it also be 48744?

rpcuser=gpfgq
rpcpassword=gPfzhuaGvhstnckwp
rpcport=48844
rpcallowip=127.0.0.1
staking=0
listen=1
port=48744
masternode=1
masternodeaddr=149.172.53.145:48744
masternodeprivkey=5mexxxxxxxxxxxxxxxxxxxxxxxxxxqV3n
daemon=1
server=1
listenonion=0
addnode=node1.sagacoin.net
addnode=node2.sagacoin.net
addnode=node3.sagacoin.net