Unable to get temperature monitor output

I am unable to get an output for the temperature monitoring system . My code is correct. I have already verified it. I am getting the following error on Putty:

Hi @shikha2001sweetu. I think you have made more than 20 API requests within a minute due to which your API access been rate limited. Try to reduce number of API requests by increasing the sleep time in the while loop of your program. This may solve the problem.

Hi @shikha2001sweetu ,
Your API access was blocked for 6 hours as you must have made too many API calls. Please check out the API ACCESS RULES before running the code. Consider upgrading to Bolt Cloud Pro if you need more bandwidth.

It worked when I increased the sleep time. Thank you!!