attribute name must not be null or empty in putdynamodb nifi

[#1]

Getting this error when using evaluatejsonpath and putdynamodb. 

2022-03-30 19:04:01,809 ERROR [Timer-Driven Process Thread-1] o.a.n.p.aws.dynamodb.PutDynamoDB PutDynamoDB[id=d8f73587-017f-1000-2455-aaff9f514cba] Failed to process session due to java.lang.IllegalArgumentException: Attribute name must not be null or empty; Processor Administratively Yielded for 1 sec: java.lang.IllegalArgumentException: Attribute name must not be null or empty
java.lang.IllegalArgumentException: Attribute name must not be null or empty

Any help will be much appreciated.

[#2]

@gizo 

Could you provide the full configuration for both processors? The screenshots are cropped.

Cheers,

André

[#3]