We have resolved similar issue in below thread.
There are other solutions for different issues as well, you can search them up on the forum before posting a new topic. If you don’t find anything relevant that could solve your issue, you can surely create a new topic then.
After correcting also I’m getting the below error
Reading sensor value Sensor value is: 267
making request to Mailgun to send an email
Mailgun response is Forbidden
We have resolved this query here -
I have already mentioned that you may face more such issues, make sure to search the query in the forum and see if you find anything relevant.
Let me know if you have any other queries.