Hi @medrivia,
It looks like you are importing the schema itself as nodes and predicates, which may be the cause of this bug. As per the Dgraph live loader documentation here, the command is fired as below.
dgraph live -f <path-to-gzipped-RDf-or-JSON-file> -s <path-to-schema-file>
The data and schema are separately provider using the -f and the -s argument respectively.