Ah thank you very much for your help. When I add the right URL at least it works and give me the following Error:
ERROR: Bad request - please check your parameters
400 - “{"code":104,"message":"Invalid access token, does not contain scopes:[phone:master]."}” - {“code”:104,“message”:“Invalid access token, does not contain scopes:[phone:master].”}
NodeApiError: Bad request - please check your parameters
at Object.execute (/usr/local/lib/node_modules/n8n/node_modules/n8n-nodes-base/dist/nodes/HttpRequest/V3/HttpRequestV3.node.js:1540:27)
at processTicksAndRejections (node:internal/process/task_queues:95:5)
at Workflow.runNode (/usr/local/lib/node_modules/n8n/node_modules/n8n-workflow/dist/Workflow.js:698:19)
at /usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/WorkflowExecute.js:656:53
If you have added that now it could just be that you need to authenticate again, In the credential in n8n click reconnect and you should be good to go.