Suddenly the built in mongo connector stopped the source

[prasathsekar]

we are using mongo built in connector to source the MongoDB collection and below is the example config

{
"configs": {
"mongoUri": "{{mongo_uri}}",
"database": "{{db_name}}",
"collection": "chub_agent",
"syncType": "incr_sync",
"batchSize": "2",
"batchTimeMs": "500"
}
}

We used to source 10 collections. suddenly the connector stops the source from MongoDB. There is no error, it show running but no file is sourced.