How to trace an Error: PDOException: SQLSTATE[23000]:
The composite primary key for field tables is entity_type,entity_id,deleted,delta,language. The error itself lists the key:

'node-4294967295-0-0-und'


You can confirm that there is a pre-existing field in the table by querying your database with a search on those values. 

Also of note, your node id is at 4294967295. This is the upper limit of 32-bit unsigned integers; anything higher than that is going to start causing problems with your SQL storage.