Does OCR tell you when you're out of daily uses

I am using the following OCR command:

  "Command": "XMove",
  "Target": "ocr=Shape@pos=1",
  "Value": ""

And it stopped working randomly and gave me this error every time:

[error] no match found for 'ocr=Shape@pos=1'
This confused me because I didn’t change the website or the Kantu commands at all. What I am wondering is if this could be caused by the daily limit of OCR api calls? If not is there anyway to debug why OCR would stop working without anything changing?