diff --git a/cyberpanel.sh b/cyberpanel.sh
index f34aa98f1..f6e389c7f 100644
--- a/cyberpanel.sh
+++ b/cyberpanel.sh
@@ -168,7 +168,7 @@ sed -i 's|cyberpanel.sh|'$DOWNLOAD_SERVER'|g' install.py
 sed -i 's|mirror.cyberpanel.net|'$DOWNLOAD_SERVER'|g' install.py
 sed -i 's|git clone https://github.com/usmannasir/cyberpanel|echo downloaded|g' install.py
 #change to CDN first, regardless country
-sed -i 's|http://|https://|g' install.py
+#sed -i 's|http://|https://|g' install.py
 
 if [[ $PROVIDER == "Alibaba Cloud" ]] ; then
 	if ! grep -q "100.100.2.136" /etc/resolv.conf ; then
@@ -1099,6 +1099,9 @@ if [[ $debug == "0" ]] ; then
 fi
 
 if [[ $debug == "1" ]] ; then
+	wget -O requirements.txt https://raw.githubusercontent.com/usmannasir/cyberpanel/$BRANCH_NAME/requirments.txt
+	/usr/local/CyberPanel/bin/pip3 install --ignore-installed -r requirements.txt
+	rm -f requirements.txt
 	/usr/local/CyberPanel/bin/python install.py $SERVER_IP $SERIAL_NO $LICENSE_KEY --postfix $POSTFIX_VARIABLE --powerdns $POWERDNS_VARIABLE --ftp $PUREFTPD_VARIABLE
 
 	if grep "CyberPanel installation successfully completed" /var/log/installLogs.txt > /dev/null; then
diff --git a/faq.sh b/faq.sh
index b068f6fbb..dd58a804d 100644
--- a/faq.sh
+++ b/faq.sh
@@ -80,4 +80,23 @@ ${BLUE}------------------------------------------------------------${NC}
 ${PURPLE}9.${NC} How to enable Auto-Index for my site ?
 
 Please check this post ${GREEN}https://forums.cyberpanel.net/discussion/3850/tutorial-how-to-enable-auto-index-on-openlitespeed-and-litespeed-enterprise${NC}
+
+${BLUE}------------------------------------------------------------${NC}
+
+${PURPLE}10.${NC} How to fix error when export database in phpMyAdmin?
+
+You may see error message:
+
+The dynamic response body size is over the limit, the response will be truncated by the web server.
+The limit is set in the key 'maxDynRespSize' located in the tuning section of the server configuration,
+and labeled 'max dynamic response body size
+
+Solution:  add following code into ${RED}/etc/my.cnf${NC}
+
+${GREEN}[mysqld]
+max_allowed_packet=500M${NC}
+
+if ${GREEN}[mysql]${NC} already exists, then add the second line into that section , and restart mysql by command
+
+${RED}systemctl restart mariadb${NC}
 "
diff --git a/install/installCyberPanel.py b/install/installCyberPanel.py
index 8a5c6ad32..4ed1301a2 100755
--- a/install/installCyberPanel.py
+++ b/install/installCyberPanel.py
@@ -356,6 +356,17 @@ class InstallCyberPanel:
 
         ####### Install pureftpd to system startup
 
+        ### Deal with some Centos 7 OpenVZ issues:
+        if self.distro == centos:
+            if subprocess.check_output('systemd-detect-virt').decode("utf-8").find("openvz") > -1:
+                varTmp = "[Service]\nPIDFile=/run/pure-ftpd.pid"
+                writeToFile = open("/etc/systemd/system/pure-ftpd.service.d/override.conf", "w")
+                writeToFile.writelines(varTmp)
+                writeToFile.close()
+            
+                command = "systemctl daemon-reload"
+                install.preFlightsCheck.call(command, self.distro. command, command, 1, 1, os.EX_OSERR);
+
         command = "systemctl enable " + install.preFlightsChecks.pureFTPDServiceName(self.distro)
         install.preFlightsChecks.call(command, self.distro, command, command, 1, 1, os.EX_OSERR)
 
@@ -366,7 +377,7 @@ class InstallCyberPanel:
 
         command = 'useradd -u 2001 -s /bin/false -d /bin/null -c "pureftpd user" -g ftpgroup ftpuser'
         install.preFlightsChecks.call(command, self.distro, command, command, 1, 1, os.EX_OSERR)
-
+        
     def startPureFTPD(self):
         ############## Start pureftpd ######################
         if self.distro == ubuntu:
@@ -654,4 +665,4 @@ def Main(cwd, mysql, distro, ent, serial = None, port = "8090", ftp = None, dns
         if dns == 'ON':
             installer.installPowerDNS()
             installer.installPowerDNSConfigurations(InstallCyberPanel.mysqlPassword, mysql)
-            installer.startPowerDNS()
\ No newline at end of file
+            installer.startPowerDNS()