only free up job if robot is working

public/locales/de/translation.json

@@ -214,6 +214,10 @@
         "popconfirm": {
           "title": "Sind Sie sicher, dass Sie den Job von dem Roboter entfernen wollen?",
           "description": "Der Roboter wird danach wieder für Aufträge zur Verfügung stehen"
+        },
+        "popconfirmErrorNotification": {
+          "message": "Job konnte nicht entfernt werden",
+          "description": "Der Roboter ist am arbeiten"
         }
       }
     },

public/locales/en/translation.json

@@ -214,6 +214,10 @@
         "popconfirm": {
           "title": "Are you sure you want to free up the job of the robot?",
           "description": "The job of the robot will be removed"
+        },
+        "popconfirmErrorNotification": {
+          "message": "Job could not be freed up",
+          "description": "The robot is not processing a job"
         }
       }
     },

src/Pages/Robotics/Robots/index.js

@@ -250,7 +250,18 @@ export default function Robots() {
                     {},
                     myFetchContentType.JSON,
                     Constants.ROBOTICS_API_ADDRESS
-                  )
+                  ).catch((err) => {
+                    if (err === 422) {
+                      notificationApi["error"]({
+                        message: t(
+                          "robotics.robots.freeUpJob.popconfirmErrorNotification.message"
+                        ),
+                        description: t(
+                          "robotics.robots.freeUpJob.popconfirmErrorNotification.description"
+                        ),
+                      });
+                    }
+                  })
                 }
                 icon={<ExclamationCircleOutlined style={{ color: "red" }} />}
               >