fix: Singularity issue with non existing SE + JobAgent issue with submission exceptions

Author: aldbr

src/DIRAC/Resources/Computing/SingularityComputingElement.py

@@ -384,7 +384,12 @@ def submitJob(self, executableFile, proxy=None, **kwargs):
         for seName in localSEs:
             try:
                 # Find the base path if a File protocol is defined
-                mountedPath = StorageElement(seName).getStorageParameters(protocol="file")["Value"]["Path"]
+                se = StorageElement(seName)
+                if not se.valid:
+                    self.log.warn(f"Storage Element {seName} not valid")
+                    continue
+
+                mountedPath = se.getStorageParameters(protocol="file")["Value"]["Path"]
                 bindPaths.append(f"{mountedPath}:{mountedPath}:ro")
             except KeyError:
                 pass

src/DIRAC/WorkloadManagementSystem/Agent/JobAgent.py

@@ -665,7 +665,7 @@ def _submitJob(
             self.log.exception("Exception occurred when submitting", f"JobID: {jobID}")
             taskID = 0
             # We create a S_ERROR from the exception to compute it as a normal error
-            self.computingElement.taskResults[taskID] = S_ERROR(unexpectedSubmitException)
+            self.computingElement.taskResults[taskID] = S_ERROR(str(unexpectedSubmitException))
             self.jobs[jobID]["TaskID"] = taskID
             return S_OK()