fix for job manager crash: Unable to contact slurm controller

eessi_bot_job_manager.py

@@ -113,8 +113,14 @@ def get_current_jobs(self):
             squeue_cmd,
             "get_current_jobs(): squeue command",
             log_file=self.logfile,
+            raise_on_error=False,
         )
 
+        if squeue_exitcode != 0:
+            current_jobs = {}
+            log("The squeue command failed will try again in {} seconds".format(config.read_config()["job_manager"].get("poll_interval")))
+            return current_jobs
+
         # create dictionary of jobs from output of 'squeue_cmd'
         # with the following information per job: jobid, state,
         # nodelist_reason