Navigate to your desired website in CyberPanel.
Then open the management dashboard of that website.
Scroll down to File Manager. (It will open in another tab)
Double click on public_html
Locate .htaccess
Right click on .htaccess
Click on Edit
Wait for the screen to load your .htaccess, it should look like this. You can edit the file and Save Changes once you are done.
For simple troubleshooting without the need to contact technical support.