diff --git a/back/pialert.py b/back/pialert.py
index 86eb1f1d..f18d2097 100755
--- a/back/pialert.py
+++ b/back/pialert.py
@@ -670,7 +670,7 @@ def main ():
 
                 # If thread is still active
                 if p.is_alive():
-                    print "DEBUG scan_network running too long - let's kill it"
+                    print("DEBUG scan_network running too long - let\'s kill it")
                     mylog('info', ['    DEBUG scan_network running too long - let\'s kill it'])
 
                     # Terminate - may not work if process is stuck for good
diff --git a/front/plugins/nmap_services/config.json b/front/plugins/nmap_services/config.json
index 66cd32a2..97464a10 100755
--- a/front/plugins/nmap_services/config.json
+++ b/front/plugins/nmap_services/config.json
@@ -220,7 +220,7 @@
         {
             "function": "CMD",
             "type": "text",
-            "default_value":"SELECT  dv.dev_Name as Object_PrimaryID, cast('http://' || dv.dev_LastIP as VARCHAR(100)) || ':' || cast( SUBSTR(ns.Port ,0, INSTR(ns.Port , '/')) as VARCHAR(100)) as Object_SecondaryID,  datetime() as DateTime,  ns.Service as Watched_Value1,        ns.State as Watched_Value2,        'null' as Watched_Value3,        'null' as Watched_Value4,        ns.Extra as Extra, dv.dev_MAC as ForeignKey        FROM (SELECT * FROM Nmap_Scan) ns LEFT JOIN (SELECT dev_Name, dev_MAC, dev_LastIP FROM Devices) dv   ON ns.MAC = dv.dev_MAC",
+            "default_value":"SELECT  ns.MAC as Object_PrimaryID, cast('http://' || dv.dev_LastIP as VARCHAR(100)) || ':' || cast( SUBSTR(ns.Port ,0, INSTR(ns.Port , '/')) as VARCHAR(100)) as Object_SecondaryID,  datetime() as DateTime,  ns.Service as Watched_Value1, ns.State as Watched_Value2, dv.dev_Name as Watched_Value3,        'null' as Watched_Value4,        ns.Extra as Extra, ns.MAC as ForeignKey FROM (SELECT * FROM Nmap_Scan) ns left JOIN (SELECT dev_Name, dev_MAC, dev_LastIP FROM Devices) dv  ON ns.MAC = dv.dev_MAC",
             "options": [],
             "localized": ["name", "description"],
             "name" : [{
diff --git a/front/plugins/snmp_discovery/script.py b/front/plugins/snmp_discovery/script.py
index 8a7446a9..ec7d748d 100755
--- a/front/plugins/snmp_discovery/script.py
+++ b/front/plugins/snmp_discovery/script.py
@@ -31,10 +31,11 @@ def main():
     # init global variables
     global ROUTERS
 
-    last_run_logfile = open(last_run, 'a') 
-
     # empty file
-    last_run_logfile.write("")
+    open(last_run , 'w').close()   
+
+    last_run_logfile = open(last_run, 'a') 
+    
 
     parser = argparse.ArgumentParser(description='This plugin is used to discover devices via the arp table(s) of a RFC1213 compliant router or switch.')
     
diff --git a/front/plugins/unifi_import/config.json b/front/plugins/unifi_import/config.json
index 876734ac..74d8cf76 100755
--- a/front/plugins/unifi_import/config.json
+++ b/front/plugins/unifi_import/config.json
@@ -47,6 +47,11 @@
             "name"  : "port",
             "type"  : "setting",
             "value" : "UNFIMP_port"
+        },
+        {
+            "name"  : "version",
+            "type"  : "setting",
+            "value" : "UNFIMP_version"
         }
     ], 
     "database_column_definitions":
@@ -257,7 +262,7 @@
         {
             "function": "CMD",
             "type": "text",
-            "default_value":"python3 /home/pi/pialert/front/plugins/unifi_import/script.py username={username} password={password}  host={host} sites={sites}  protocol={protocol} port={port}",
+            "default_value":"python3 /home/pi/pialert/front/plugins/unifi_import/script.py username={username} password={password}  host={host} sites={sites}  protocol={protocol} port={port} version={version}",
             "options": [],
             "localized": ["name", "description"],
             "name" : [{
@@ -344,6 +349,21 @@
                 "string" : "The port number where the UNIFI controller is runnig. Usually it is <code>8443</code>."
             }]
         },
+        {
+            "function": "version",
+            "type": "text",
+            "default_value":"",
+            "options": [],
+            "localized": ["name", "description"],
+            "name" : [{
+                "language_code":"en_us",
+                "string" : "API version"
+            }],
+            "description": [{
+                "language_code":"en_us",
+                "string" : "The base version of the Unify controller API. Supported values as of time of writing are <code>v4|v5|unifiOS|UDMP-unifiOS</code>."
+            }]
+        },
         {
             "function": "sites",
             "type": "list",
diff --git a/front/plugins/unifi_import/script.py b/front/plugins/unifi_import/script.py
index 1eb1c632..4bc9bc96 100755
--- a/front/plugins/unifi_import/script.py
+++ b/front/plugins/unifi_import/script.py
@@ -32,7 +32,7 @@ def main():
 
     # init global variables
     global UNIFI_USERNAME, UNIFI_PASSWORD, UNIFI_HOST
-    global UNIFI_SITES, PORT, PROTOCOL
+    global UNIFI_SITES, PORT, PROTOCOL, VERSION
 
     last_run_logfile = open(last_run, 'a') 
 
@@ -47,6 +47,7 @@ def main():
     parser.add_argument('sites',  action="store",  help="Name of the sites (usually 'default', check the URL in your UniFi controller UI). Separated by comma (,) if passing multiple sites")      
     parser.add_argument('protocol',  action="store",  help="https:// or http://")  
     parser.add_argument('port',  action="store",  help="Usually 8443")  
+    parser.add_argument('version',  action="store",  help="The base version of the controller API [v4|v5|unifiOS|UDMP-unifiOS]")  
 
     values = parser.parse_args()
 
@@ -61,6 +62,7 @@ def main():
         UNIFI_SITES = values.sites.split('=')[1]  
         PROTOCOL = values.protocol.split('=')[1]
         PORT = values.port.split('=')[1]
+        VERSION = values.version.split('=')[1]
         
         newEntries = get_entries(newEntries)  
 
@@ -85,7 +87,7 @@ def get_entries(newEntries):
 
     for site in sites:
 
-        c = Controller(UNIFI_HOST, UNIFI_USERNAME, UNIFI_PASSWORD, ssl_verify=False, site_id=site )
+        c = Controller(UNIFI_HOST, UNIFI_USERNAME, UNIFI_PASSWORD, version=VERSION, ssl_verify=False, site_id=site )
 
         for ap in c.get_aps():