Websheet AI E865: OpenAI API is not available

Issues with the OpenAI API, please wait some time

Error on the Open AI side
Visit the status.openai.com page to check the current status of OpenAI API.
The issue also can appear because of reaching user limits for API usase.
Wait some time and check if this issue is fixed. If not, write to support@websheet.cc 
For the formulas, select the cells with the error, go to the Actions tab, and click 'Refresh Selected'