try to fix startup ?

root/etc/init.d/AdGuardHome

@@ -455,7 +455,7 @@ start_service() {
 	procd_set_param limits core="unlimited" nofile="unlimited"
 	procd_set_param stderr 1
 	procd_set_param command $binpath $ADDITIONAL_ARGS
-	procd_set_param file "$configpath" "/etc/hosts"
+	procd_set_param file "$configpath" "/etc/hosts" "/etc/config/AdGuardHome"
 	procd_close_instance
 	if [ -f "$configpath" ]; then
 		do_redirect 1