diff --git a/NOTES.ruff b/NOTES.ruff
index cd466f7..fe89b38 100644
--- a/NOTES.ruff
+++ b/NOTES.ruff
@@ -1 +1,4 @@
 take "~" as expander to make a ./linspector dir
+
+(using linspector.minimal)
+a host which doesn't define a service (seen in linspector.minimal), is at this point useless. It was intended that the host defines allowed services there. The warning that a hostgroup was defined for a host which has not such a service is supressed because host.services has no items to iterate over(hosts.py l64).Also a service like ping isn't defined anywhere... Not shure if this should be considered as config error or parsing error
diff --git a/lib/config/periods.py b/lib/config/periods.py
index 76ddd55..2ee50bc 100644
--- a/lib/config/periods.py
+++ b/lib/config/periods.py
@@ -66,7 +66,7 @@ class DatePeriod(Period):
         return ret
         
     def createJob(self, scheduler, jobInfo, func):
-        return scheduler.add_date_job(func, self.date, [jobInfo])
+        return scheduler.add_date_job(func, self.date, jobInfo)
 
 
 def parsePeriodList(periodlist, log):
diff --git a/lib/core/job.py b/lib/core/job.py
index 4c5d446..ae7df06 100644
--- a/lib/core/job.py
+++ b/lib/core/job.py
@@ -34,9 +34,12 @@ class JobInfo:
         return nextExecution
         
     def handleCall(self):
-        print "calling command " + str(service.command) 
-        cmd = Command(service.command)
-        self.log.d("executing command: " + str(command))
-        cmd.call()
-        return cmd
+        print "about to call command " + str(self.service.command) 
+        #must find real service command stored in hosts...
+        #but because of error, mentioned in NOTES,ruff, there is no ping i.e.
+
+        #cmd = Command(service.command)
+        #self.log.d("executing command: " + str(command))
+        #cmd.call()
+        #return cmd