PSI, PM2.5 API not working

[jasonleow]

Describe the bug
PSI API had stopped returning data since 1 November 2023

To Reproduce
The PSI endpoint https://api.data.gov.sg/v1/environment/psi returns:

{"items":[{}],"region_metadata":[],"api_info":{"status":"healthy","message":"No recent updates from the agency."}}

Expected behavior
Data should return for the API instead of blank arrays.

[jasonleow]

Adding on: Now the PM2.5 API endpoint is down too (5 Nov 2023).

https://api.data.gov.sg/v1/environment/pm25

It returns

{
  "items": [
    {
      
    }
  ],
  "region_metadata": [
    
  ],
  "api_info": {
    "status": "healthy"
  }
}

Expected behaviour:
It should return data for various regions instead of blank array (and certainly not status: healthy)