diff --git a/install.sh b/install.sh
index fa38c94..c3c3ca3 100644
--- a/install.sh
+++ b/install.sh
@@ -336,34 +336,34 @@ installTools() {
 	if [[ "${release}" == "centos" ]]; then
 		rm -rf /var/run/yum.pid
 	fi
-	#	[[ -z `find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin |grep -v grep|grep -w curl` ]]
+	#	[[ -z `find /usr/bin /usr/sbin |grep -v grep|grep -w curl` ]]
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w wget; then
+	if ! find /usr/bin /usr/sbin | grep -q -w wget; then
 		echoContent green " ---> 安装wget"
 		${installType} wget >/dev/null 2>&1
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w curl; then
+	if ! find /usr/bin /usr/sbin | grep -q -w curl; then
 		echoContent green " ---> 安装curl"
 		${installType} curl >/dev/null 2>&1
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w unzip; then
+	if ! find /usr/bin /usr/sbin | grep -q -w unzip; then
 		echoContent green " ---> 安装unzip"
 		${installType} unzip >/dev/null 2>&1
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w socat; then
+	if ! find /usr/bin /usr/sbin | grep -q -w socat; then
 		echoContent green " ---> 安装socat"
 		${installType} socat >/dev/null 2>&1
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w tar; then
+	if ! find /usr/bin /usr/sbin | grep -q -w tar; then
 		echoContent green " ---> 安装tar"
 		${installType} tar >/dev/null 2>&1
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w cron; then
+	if ! find /usr/bin /usr/sbin | grep -q -w cron; then
 		echoContent green " ---> 安装crontabs"
 		if [[ "${release}" == "ubuntu" ]] || [[ "${release}" == "debian" ]]; then
 			${installType} cron >/dev/null 2>&1
@@ -371,22 +371,22 @@ installTools() {
 			${installType} crontabs >/dev/null 2>&1
 		fi
 	fi
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w jq; then
+	if ! find /usr/bin /usr/sbin | grep -q -w jq; then
 		echoContent green " ---> 安装jq"
 		${installType} jq >/dev/null 2>&1
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w binutils; then
+	if ! find /usr/bin /usr/sbin | grep -q -w binutils; then
 		echoContent green " ---> 安装binutils"
 		${installType} binutils >/dev/null 2>&1
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w ping6; then
+	if ! find /usr/bin /usr/sbin | grep -q -w ping6; then
 		echoContent green " ---> 安装ping6"
 		${installType} inetutils-ping >/dev/null 2>&1
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w nginx; then
+	if ! find /usr/bin /usr/sbin | grep -q -w nginx; then
 		echoContent green " ---> 安装nginx"
 		if [[ "${centosVersion}" == "8" ]]; then
 			rpm -ivh ${nginxEpel} >/etc/v2ray-agent/error.log 2>&1
@@ -400,7 +400,7 @@ installTools() {
 		fi
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w semanage; then
+	if ! find /usr/bin /usr/sbin | grep -q -w semanage; then
 		echoContent green " ---> 安装semanage"
 		${installType} bash-completion >/dev/null 2>&1
 		if [[ -n "${policyCoreUtils}" ]]; then
@@ -412,13 +412,13 @@ installTools() {
 		fi
 	fi
 
-	if ! find /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin | grep -q -w sudo; then
+	if ! find /usr/bin /usr/sbin | grep -q -w sudo; then
 		echoContent green " ---> 安装sudo"
 		${installType} sudo >/dev/null 2>&1
 	fi
 	# todo 关闭防火墙
 
-	if [[ ! -d "$HOME/.acme.sh" ]]; then
+	if [[ ! -d "$HOME/.acme.sh" ]] || [[ -d "$HOME/.acme.sh" && -z $(find "$HOME/.acme.sh/acme.sh") ]]; then
 		echoContent green " ---> 安装acme.sh"
 		curl -s https://get.acme.sh | sh >/etc/v2ray-agent/tls/acme.log
 		if [[ -d "$HOME/.acme.sh" ]] && [[ -z $(find "$HOME/.acme.sh/acme.sh") ]]; then
@@ -426,7 +426,6 @@ installTools() {
 			echoContent yellow "错误排查："
 			echoContent red "  1.获取Github文件失败，请等待Gitub恢复后尝试，恢复进度可查看 [https://www.githubstatus.com/]"
 			echoContent red "  2.acme.sh脚本出现bug，可查看[https://github.com/acmesh-official/acme.sh] issues"
-			echoContent red "  3.反馈给开发者[私聊：https://t.me/mack_a] 或 [提issues]"
 			exit 0
 		fi
 	fi