How to fault find, which input is problematic?

[Mmmk]

See screenshots below (error, Data In and Data Out).
Frustratingly, the error message provides no useful diagnostics to fault find to help locate and fix the error. Am I missing something?

Workflow:

1. [Plutio] Invoice created > Airtable, Encharge & Plutio
> Under Router:

57. [Plutio] Person/Contact & Opportunity exist > Update Opportunity & Person/Contact​

Thanks

 

[Preeti Paryani]

Hello @Mmmk,

Could you please provide us with the Workflow URL where you are facing this issue? This will help us investigate the problem more effectively and assist you accordingly.