Non-working sensors

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City SensorSensors Last Update -
1. Grou Ekemahof before 1244 days  
2. Grou Prinses Beatrixweg before 1052 days  
3. Grou De Foarn before 921 days  
4. Grou Parallelstraat before 825 days  
5. Grou Jetsma before 562 days  
6. Grou 1e Oosterveldstraat before 268 days