FIX install.sh
for correct icon
Line 35:
Instead:
\cp -a -r /www/server/panel/plugin/free_waf/icon.png /www/server/panel/static/img/soft_ico/ico-free_waf.png
use the correct path
cp -a -r /www/server/panel/plugin/free_waf/icon.png /www/server/panel/BTPanel/static/img/soft_ico/ico-free_waf.png