diff --git a/README.md b/README.md
index 696f515..8a9bde1 100644
--- a/README.md
+++ b/README.md
@@ -2,13 +2,16 @@
 
 This is based on script found in thread https://www.zabbix.com/forum/showthread.php?t=17273
 
-Tested with Zabbix 2.4 (http://www.zabbix.com/) and Backuppc v3 (http://backuppc.sourceforge.net/).
+Tested with Zabbix 4.0 (http://www.zabbix.com/) and Backuppc v3 (http://backuppc.sourceforge.net/).
 
 ## Install
 
 1. Add a line from 'sudo' file to your sudo config
+    cp etc/sudoers.d/zabbix-backuppc /etc/sudoers.d/zabbix-backuppc
 2. copy 'zabbix-backuppc.pl' and 'zabbix-discover-backuppc.pl' to '/usr/local/bin'
+    cp usr/local/bin/*.pl /usr/local/bin
 3. make it executable with backuppc user
+    chmod +x /usr/local/bin/*.pl
 4. You need to have 'EnableRemoteCommands=1' in Zabbix agent config
 4. Import 'backuppc_zbx_export_templates.xml' into Zabbix and configure it
 
diff --git a/sudo b/etc/sudoers.d/zabbix_backuppc
similarity index 100%
rename from sudo
rename to etc/sudoers.d/zabbix_backuppc
diff --git a/zabbix-backuppc.pl b/usr/local/bin/zabbix-backuppc.pl
similarity index 98%
rename from zabbix-backuppc.pl
rename to usr/local/bin/zabbix-backuppc.pl
index cc66f1d..8b71392 100755
--- a/zabbix-backuppc.pl
+++ b/usr/local/bin/zabbix-backuppc.pl
@@ -345,7 +345,10 @@ sub zabbix_post {
 
         foreach my $server (@servers) {
           my $cmd = "zabbix_sender -z $server -p 10051 -s $zabbix_host -k $key -o '$val'";
-          system("$cmd >/dev/null");
+          $cmd_result=system("$cmd >/dev/null");
+          if ( $cmd_result > 0 )  {
+			print ("Sending data failed. Try to execute the command manually to see errors (is your host correclty spelled ?)\n$cmd\n");
+		  }
         }
 }
 
diff --git a/zabbix-discover-backuppc.pl b/usr/local/bin/zabbix-discover-backuppc.pl
similarity index 100%
rename from zabbix-discover-backuppc.pl
rename to usr/local/bin/zabbix-discover-backuppc.pl
diff --git a/backuppc_zbx_export_templates.xml b/zabbix-templates/zabbix-backuppc-template.xml
similarity index 100%
rename from backuppc_zbx_export_templates.xml
rename to zabbix-templates/zabbix-backuppc-template.xml