Random Exception on webinar registrants

[itech]

Hello friends,

I have an application made with PHP, communicated with Zoom across API, for API Consumption I use Guzzle Library, In short, I have to register a user in several Webinars so I have to iterate on the ids, but sometimes the endpoint of https://api.zoom.us/v2/webinars/{id}/registrants returns an exception with a route I don't know, this is the exception

 Client error: `POST https://u6694935.ct.sendgrid.net/ls/click?upn=SlORnTDzjTKQoDvo5BjAuI-2FIv3X2-2BJCWMM-2FhNDgObEJuEyq9Xmq5kq5p6ntXyfNEOseg4zB9bVZ5pw4moWUwxHBFWeMrnwbplc0Cb48R2MA-3DQHx2_zdujN-2FH-2Bo1hKZ5YQhYiJBmdFBiwWyY7ROOn6wQX3EXaXA-2Bai3Lh17pLLRmBMVgy7yNn84XMQkYicQkYYHrVPId59LoS9iNcJAv3-2FdP8ijgZd5TzN8H-2BAwOezo6idwSXxG99EuoyXh6tYTumJHFaq-2FgQ3JpMyXBoxLRrnqiaLlTtlOPPnQ-2Bu2FiFXis9omIa4dPjsnEQ7nKs2k5-2BmJ7Ytm0Lmfjd0IS5o-2BUalgA1HDrk-3D resulted in a `401 Unauthorized` response:
{"code":124,"message":"Invalid access token."}

I hope you can help me solve why this happens, regards

[Ray_Harwood]

Welcome to the Zoom Community, @itech.

This is a question more appropriate for the Developers Forum at https://developers.zoom.us/