Mautic / n8n / SMS Error launching automated webhooks to a list (140 contacts)

Hey guys,

I’m doing some process tests sending Mautic webooks to n8n and then SMS.

When I send automated webhooks triggers from a list of 3 contacts, the processes are successful (see screenshot below), however when I test the automated triggers on a larger list of 140 contacts, the processes are unsuccessful (see image image below).

Screen Shot 2021-06-15 at 14.38.11

Could you help me understand what might be happening and how to proceed?

Thanks in advance

What database do you use? Do you have a sufficient amount of RAM?