Error reading JObject from JsonReader.

Does anyone know why this error is appearing?

Collection Copy log
Begin Document Migration.
Source Database: database Source Collection: collection
Target Database: database Target Collection: collection
LogError
Error: Error reading JObject from JsonReader. Path '', line 0, position 0., Message: Error reading JObject from JsonReader. Path '', line 0, position 0.
Main process exits with error
LogError
Error: One or more errors occurred., Message: Error reading JObject from JsonReader. Path '', line 0, position 0.

[harrisonsp]

I am seeing this too

Collection Copy log
LogError
Error: Invalid URI: The URI is empty., Message: Invalid URI: The URI is empty.
Begin Document Migration.
Source Database: sourceDatabase Source Collection: collection
Target Database: targetDatabase Target Collection: collection
LogError
Error: Error reading JObject from JsonReader. Path '', line 0, position 0., Message: Error reading JObject from JsonReader. Path '', line 0, position 0.
Main process exits with error
LogError
Error: One or more errors occurred., Message: Error reading JObject from JsonReader. Path '', line 0, position 0.

[TaurahSP]

Still getting the first issue, any solution? @harrisonsp

[daguadoforganization]

Same error