Getting an error when trying to integrate zoom app with school plugin

Hello, I am using OAuth token to schedule meeting using zoom api. But after clicking add zoom app i get an error message when i click redirect url

getting the error

Fatal error : Uncaught GuzzleHttp\Exception\ClientException: Client error: POST https://zoom.us/oauth/token resulted in a 401 Unauthorized response: {“reason”:“Invalid Token!”,“error”:“invalid_request”} in /var/www/html/skilrock-zoom-final/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php:111 Stack trace: #0 /var/www/html/skilrock-zoom-final/vendor/guzzlehttp/guzzle/src/Middleware.php(66): GuzzleHttp\Exception\RequestException::create(Object(GuzzleHttp\Psr7\Request), Object(GuzzleHttp\Psr7\Response)) #1 /var/www/html/skilrock-zoom-final/vendor/guzzlehttp/promises/src/Promise.php(204): GuzzleHttp\Middleware::GuzzleHttp{closure}(Object(GuzzleHttp\Psr7\Response)) #2 /var/www/html/skilrock-zoom-final/vendor/guzzlehttp/promises/src/Promise.php(153): GuzzleHttp\Promise\Promise::callHandler(1, Object(GuzzleHttp\Psr7\Response), NULL) #3 /var/www/html/skilrock-zoom-final/vendor/guzzlehttp/promises/src/TaskQueue.php(48): GuzzleHttp\Promise\Promise::GuzzleHttp\Promise{closure}() #4 /var/www/html/skilrock-zoom-final/v in /var/www/html/skilrock-zoom-final/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php on line 111

Hi @gamalhaytham78

Thanks for reaching out to the Zoom Developer Forum!
Here is a link to a guide that will help you debug your issue:

Hope this helps and let me know if you have any questions
Cheers,
Elisa