3117462 - My Inbox shows error: No service found for namespace /IWPGW/, name TASKPROCESSING, version 0002

• My Inbox throws an error: "Failed to resolve navigation target"
• .ERROR_CONTEXT 
  ..ERROR_INFO No service found for namespace /IWPGW/, name TASKPROCESSING, version 0002.
  ..ERROR_RESOLUTION 
  
  OR
  
  ..Exceptions 
  .../IWFND/CX_MGW_TECH_EXCEPTION 
  ....Text No service found for namespace /IWPGW/, name TASKPROCESSING, version 0002.
  
  OR
  
  "No service found for namespace /IWPGW/, name TASKPROCESSING, version 0002
  
  
• Other errors shown:
  
  

  The Console Error in the browser shows a lot of back to back errors like:

  -Failed to load resource: the server responded with error 400 (error)
  - Failed to laod resource: the server responded with a status 500 (Internal Server error)
  - Failed to update data via service - service URL: /sap/opu/odata/IWPGW/TASKPROCESSING; v=2; mo/TaskCollection/$count/?filter=Status eq 'READY' or Status eq 'RESERVED' or 
  Status eq 'IN_PROGRESS' or Status eq 'EXECUTED' 
  HTPP request failed - 500 internal Server Error - sap.ushell.cmponents.tiles.applauncherdynamic.DynamicTile

  
   

 SAPUI5 1.84 or others

"My Inbox 2 aliases","No service found for namespace /IWPGW/","Failed to resolve navigation target","My Inbox not working","My Inbox error 400" , KBA , OPU-BSC-TGW , Task Gateway , CA-INB-FIO , Fiori UI for My Inbox Application , Problem