diff --git a/lib/site-ssl b/lib/site-ssl
index feded6b..66db417 100644
--- a/lib/site-ssl
+++ b/lib/site-ssl
@@ -8,7 +8,15 @@ source /opt/webinoly/lib/general
 site_ssl_on() {
 	local cermail=$(conf_read mail)
 	local root="$domain"
-	[[ $cache == "-root" && -n $value ]] && root="$value"
+	if [[ $cache == "-root" && -n $value && -a /etc/nginx/sites-available/$value ]]; then
+		root="$value"
+	elif [[ $cache == "-root" && -n $value && ! -a /etc/nginx/sites-available/$value ]]; then
+		echo "${red}Root path domain is not a valid domain or is not found/hosted in this server!${end}"
+		exit 1
+	elif [[ $cache == "-root" && -z $value ]]; then
+		echo "${red}Please, enter a valid root path domain!${end}"
+		exit 1
+	fi
 
 	echo "${gre}"
 	echo "*************************************************************************************************"
@@ -37,9 +45,9 @@ site_ssl_on() {
 	done
 		
 	# Create new certificate
-	if [[ ! -a /etc/letsencrypt/live/$domain/fullchain.pem && $subdomflag == 0 ]]; then
+	if [[ ! -a /etc/letsencrypt/live/$domain/fullchain.pem && $subdomflag == 0 && $(conf_read debug) != "true" ]]; then
 		sudo letsencrypt certonly --webroot -w /var/www/$root/htdocs/ -d $domain -d www.$domain --email $cermail --agree-tos
-	elif [[ ! -a /etc/letsencrypt/live/$domain/fullchain.pem && $subdomflag == 1 ]]; then
+	elif [[ ! -a /etc/letsencrypt/live/$domain/fullchain.pem && $subdomflag == 1 && $(conf_read debug) != "true" ]]; then
 		sudo letsencrypt certonly --webroot -w /var/www/$root/htdocs/ -d $domain --email $cermail --agree-tos
 	fi
 	
diff --git a/plugins/site b/plugins/site
index ba08675..c32bd18 100644
--- a/plugins/site
+++ b/plugins/site
@@ -176,6 +176,12 @@ elif [ "$type" == "-wpsubdom" ]; then
 
 # Parked Domain
 elif [ "$type" == "-parked" ]; then
+	# Check for duplicate sites
+	if [[ -a /etc/nginx/sites-available/$domain ]]; then
+		echo "${red}Site $domain could not be created because already exists!${end}"
+		exit 1
+	fi
+	
 	mapto="NeverMatchAtFirstDotCom"
 	[[ -n $value ]] && mapto="$value"