1/ 
Finally fixed my 99% sync issue. 

Follow this guide if you have the below issues:
- If your sync level is 99% or less.
- No peers or incoming gossip connections.

1) Allow port number 2282 & 2833.

Use the following Linux commands: 

sudo ufw allow 2822
sudo ufw allow 2833

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Content creator on /just-memes | owner of nftgalaxy.base.eth & memeson.base.eth


3/

Use: 

cd hubble 

To redirect to hubble. 

Now, restart the hubble by using: 

./hubble.sh down (will stop hubble)
./hubble.sh up (will start hubble)

It worked for me. Try it out if you're having the same issue.

Thank you.