showed {"type": "STATE", "value": {"currently_syncing": null}} even though table rows not empty

[Diogospm]

Hey! Hope all fine there....

I'm a new Singer.io user and I'm trying to get some data from a deb2 as400 database using tap-db2.

I was able to connect to the database and get the catalog, but when I try to sync I'm getting:
{"type": "STATE", "value": {"currently_syncing": null}}

I tried to update the catalog and make sure the stream was selected.
"metadata": [
{
"breadcrumb": [],
"metadata": {
"table-key-properties": [],
"selected-by-default": true,
"selected": true,
"replication-method": "FULL_TABLE",
"valid-replication-keys": [
"Id"
]
But I'm getting the same result, if I submit a query direcly using pyodbc I able to get data.

thanks.

[Diogospm]

the complete catalog:

{
"streams": [
{
"tap_stream_id": "$$ILH45O-UKROLL",
"database_name": "$$ILH45O",
"table_name": "UKROLL",
"schema": {
"properties": {
"RMORTI": {
"inclusion": "available",
"maxLength": 15,
"type": [
"null",
"string"
]
},
"RMLOJO": {
"inclusion": "available",
"maxLength": 3,
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"is_view": false,
"stream": "UKROLL",
"metadata": [
{
"breadcrumb": [],
"metadata": {
"table-key-properties": [],
"selected-by-default": true,
"valid-replication-keys": [],
"selected": true,
"replication-method": "FULL_TABLE"
}
},
{
"breadcrumb": [
"properties",
"RMORTI"
],
"metadata": {
"selected-by-default": true,
"sql-datatype": "char"
}
},
{
"breadcrumb": [
"properties",
"RMLOJO"
],
"metadata": {
"selected-by-default": true,
"sql-datatype": "char"
}
}
]
}
]
}

comparing with a test done using tap postgres, I don't have the schema object here in db2, should I?