Hi all,
I can see a couple of threads on this but I can't find a solution in them.
We are trying to import the attached Postman collection as a Custom Connector via PowerApps > Data, but are getting the error Cannot read properties of undefined (reading 'toString'):

I assume there is something in the json file that isn't quite correct, but this file is from a supplier - I don't know what to look for, and it's hard to find somewhere there that will!
The file is here, as I can't upload json documents: https://eurowagens-my.sharepoint.com/:u:/p/m_harwood/EZb8obrYoPBJvRm9dd0grJMB-Ve2BPv4Xmq9GDZKUGFazA?e=75thPe
Can anyone advise how I can get this working please?
Thanks so much in advance,
Matt