diff --git a/debian9-x86_64.sh b/debian9-x86_64.sh
index 444a169..d71a6e9 100755
--- a/debian9-x86_64.sh
+++ b/debian9-x86_64.sh
@@ -166,7 +166,7 @@ echo "Remove lock and update packages list..."
 rm -f /var/lib/dpkg/lock
 rm -f /var/lib/dpkg/lock-frontend
 rm -f /var/cache/apt/archives/lock
-apt-get update
+apt-get update --allow-releaseinfo-change
 rm -f /var/lib/dpkg/lock
 rm -f /var/lib/dpkg/lock-frontend
 rm -f /var/cache/apt/archives/lock
@@ -179,7 +179,7 @@ if [ "$ID" = "debian" ] && [ "$VERSION_ID" = "9" ] && [ "$UPDATE_OS" = "yes" ];
 	apt-get -y -f --force-yes upgrade
 	apt-get -y -f --force-yes dist-upgrade
 	sed -i 's:stretch:buster:g' /etc/apt/sources.list
-	apt-get update
+	apt-get update --allow-releaseinfo-change
 	apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" upgrade
 	apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" dist-upgrade
 	VERSION_ID="10"
@@ -189,7 +189,7 @@ if [ "$ID" = "ubuntu" ] && [ "$VERSION_ID" = "18.04" ] && [ "$UPDATE_OS" = "yes"
 	apt-get -y -f --force-yes upgrade
 	apt-get -y -f --force-yes dist-upgrade
 	sed -i 's:bionic:focal:g' /etc/apt/sources.list
-	apt-get update
+	apt-get update --allow-releaseinfo-change
 	apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" upgrade
 	apt-get -y -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" dist-upgrade
 	VERSION_ID="20.04"
@@ -252,7 +252,7 @@ elif [ "$ID" = "ubuntu" ]; then
 fi
 # Install mptcp kernel and shadowsocks
 echo "Install mptcp kernel and shadowsocks..."
-apt-get update
+apt-get update --allow-releaseinfo-change
 sleep 2
 apt-get -y install dirmngr patch rename curl libcurl4 unzip
 
diff --git a/omr-service b/omr-service
index c94e748..a51b564 100755
--- a/omr-service
+++ b/omr-service
@@ -73,15 +73,17 @@ _omr_api() {
 }
 
 _lan_route() {
-	cat /etc/openmptcprouter-vps-admin/omr-admin-config.json | jq -c '.users[0][]' |
+	cat /etc/openmptcprouter-vps-admin/omr-admin-config.json | jq -c '.users[0][]?' |
 	while IFS=$"\n" read -r c; do
 		if [ -n "$c" ]; then
 			vpnremoteip=$(echo "$c" | jq -r '.vpnremoteip')
 			if [ -n "$vpnremoteip" ] && [ "$vpnremoteip" != "null" ]; then
-				echo "$c" | jq -c -r '.lanips[] //empty' | 
+				echo "$c" | jq -c -r '.lanips[]? //empty' | 
 				while IFS=$"\n" read -r d; do
-					network=$(ipcalc -n $d | grep Network | awk '{print $2}')
-					[ -n "$network" ] && [ -z "$(ip r show $network via $vpnremoteip)" ] && ip r replace $network via $vpnremoteip 2>&1 >/dev/null
+					if [ "$d" != "" ]; then
+						network=$(ipcalc -n $d | grep Network | awk '{print $2}')
+						[ -n "$network" ] && [ -z "$(ip r show $network via $vpnremoteip)" ] && ip r replace $network via $vpnremoteip 2>&1 >/dev/null
+					fi
 				done
 			fi
 		fi
diff --git a/shadowsocks.conf b/shadowsocks.conf
index 5fb5da0..d6d760a 100644
--- a/shadowsocks.conf
+++ b/shadowsocks.conf
@@ -60,4 +60,4 @@ net.ipv4.conf.default.log_martians = 0
 net.mptcp.mptcp_checksum = 0
 net.mptcp.mptcp_syn_retries = 2
 net.mptcp.mptcp_scheduler = blest
-net.ipv4.tcp_ecn=1
+net.ipv4.tcp_ecn = 2