==> login to your server
==> Empty your data folder aka. /home/yourusername/.bearsd/
Here is a simple guide, on how to do that.
Backup your config file first.
cp .bearsd/config.ini .
Remove everything inside of .bearsd directory
sudo rm -rf .bearsd/*
Copy your config file back into the directory
cp config.ini .bearsd/
Now start your node.
it is recommended to run your node inside of screen
sudo apt install screen screen -S bearsd sudo bearsd
==> After starting your node again and syncing to network, it will start producing blocks again.
==> you don't need to change your binary