diff --git a/calls.py b/calls.py
index d4c8f2c..94e8dde 100644
--- a/calls.py
+++ b/calls.py
@@ -22,6 +22,7 @@ class EjabberdApiCalls(EjabberdApi):
 
             except AttributeError:
                 # emtpy response or None obj
+                log.warning("nodename not found on split")
                 raise SystemExit(17)
 
             except IndexError:
@@ -50,6 +51,7 @@ class EjabberdApiCalls(EjabberdApi):
                 tmp = ver_str.findall(status)[0]
             # raise SystemExit code 17 if no status message is received
             except TypeError:
+                log.warning("ver sting not parsed")
                 raise SystemExit(17)
 
             # return parsed version string
@@ -93,25 +95,39 @@ class EjabberdApiCalls(EjabberdApi):
 
     def fetch_s2s_in(self):
         result = self.cmd("incoming_s2s_number", {})
-        if "s2s_incoming" not in result:
-            return result
-        return result["s2s_incoming"]
+        if isinstance(result, dict):
+            if "s2s_incoming" in result:
+                return result["s2s_incoming"]
+            log.warning("fetch_s2s_in: error empty result " + str(result))
+            return 0
+        return result
 
     def fetch_s2s_out(self):
         result = self.cmd("outgoing_s2s_number", {})
-        if "s2s_outgoing" not in result:
-            return result
-        return result["s2s_outgoing"]
+        if isinstance(result, dict):
+            if "s2s_outgoing" in result:
+                return result["s2s_outgoing"]
+            log.warning("fetch_s2s_out: error empty result " + str(result))
+            return 0
+        return result
 
     def fetch_uptime(self):
         result = self.cmd("stats", {"name": "uptimeseconds"})
-        if "stat" in result:
-            return result["stat"]
+        if isinstance(result, dict):
+            if "stat" in result:
+                return result["stat"]
+            log.warning("uptime: error empty result " + str(result))
+            return 0
+        return result
 
     def fetch_processes(self):
         result = self.cmd("stats", {"name": "processes"})
-        if "stat" in result:
-            return result["stat"]
+        if isinstance(result, dict):
+            if "stat" in result:
+                return result["stat"]
+            log.warning("processes: error empty result " + str(result))
+            return 0
+        return result
 
     def fetch_registered_count(self, vhost=None):
         if vhost is None: