Exception while invoking method 'outgoingWebhooks' { [object Object]
  message: 'Match error: Expected plain object',
  path: '',
  sanitizedError: 
   { Error: Match failed [400]
    at errorClass.<anonymous> (packages/check/match.js:91:27)
    at new errorClass (packages/meteor.js:655:17)
    at check (packages/check/match.js:36:17)
    at MethodInvocation.outgoingWebhooks (server/notifications/outgoing.js:103:5)
    at MethodInvocation.methodMap.(anonymous function) (packages/mdg:meteor-apm-agent/lib/hijack/wrap_session.js:161:30)
    at currentArgumentChecker.withValue (packages/check/match.js:118:15)
    at Meteor.EnvironmentVariable.EVp.withValue (packages/meteor.js:1234:12)
    at Object._failIfArgumentsAreNotAllChecked (packages/check/match.js:116:43)
    at maybeAuditArgumentChecks (packages/ddp-server/livedata_server.js:1768:18)
    at DDP._CurrentMethodInvocation.withValue (packages/ddp-server/livedata_server.js:719:19)
    at Meteor.EnvironmentVariable.EVp.withValue (packages/meteor.js:1234:12)
    at DDPServer._CurrentWriteFence.withValue (packages/ddp-server/livedata_server.js:717:46)
    at Meteor.EnvironmentVariable.EVp.withValue (packages/meteor.js:1234:12)
    at Promise (packages/ddp-server/livedata_server.js:715:46)
    at new Promise (<anonymous>)
    at Session.method (packages/ddp-server/livedata_server.js:689:23)
    at packages/mdg:meteor-apm-agent/lib/hijack/wrap_session.js:52:38
    at Meteor.EnvironmentVariable.EVp.withValue (packages/meteor.js:1234:12)
    at Session.sessionProto.protocol_handlers.method (packages/mdg:meteor-apm-agent/lib/hijack/wrap_session.js:51:44)
    at packages/ddp-server/livedata_server.js:559:43
     isClientSafe: true,
     error: 400,
     reason: 'Match failed',
     details: undefined,
     message: 'Match failed [400]',
     errorType: 'Meteor.Error' },
  errorType: 'Match.Error' }