You can block traffic coming from any specific IP addresses with .htaaccess file. Please refer to the below steps to block ip address using .htaccess.

1. Login to your cPanel account and open the file manager.
   
   
   
   
2. Open the pubic_html directory.
   
   
3. Click on the setting and tick the Show Hidden Files (dotfiles) option and click save.
   
   
   
   
4. Right-click on the .htaccess file and click on the edit.
   
   
   
5. Insert the following lines inside .htaccess file as shown in the screen capture and save the file.
   
   Order Denny, Alllow
Deny from 192.xxx.xxx.xxx
   
   

      Note: replace the IP 192.xxx.xxx.xxx with the actual IP address, you want to block for your website.