Seatunnel API submit-job Failed : 'org.apache.seatunnel.api.table.connector.TableSource org.apache.seatunnel.api.table.factory.TableSourceFactory.createSource(org.apache.seatunnel.api.table.factory.TableSourceFactoryContext)'

[seatunneltrailuser]

Version :

2.3.4

What happenned

http://<serverip:port/hazelcast/rest/maps/submit-job?jobName=Seatunnel_poc_batch_233-09&isStartWithSavePoint=0&jobId=676776

RequestBody

{
"env": {
"execution.parallelism": 2
, "job.mode": "BATCH"
, "job.name": "Seatunnel_poc_batch_233-09"
, "checkpoint.interval": 10000
, "engine.type": "flink"
, "jars": "seatunnel-flink-15-starter.jar"
, "flink.execution.checkpointing.unaligned.enabled": true
, "flink.execution.checkpointing.mode": "EXACTLY_ONCE"
, "flink.execution.checkpointing.timeout": 600000
}
,"source": [
{
"plugin_name": "Jdbc",
"url": "jdbc:postgresql://192.168.15.77:1465/inmudvinl?currentSchema=inmudv_inl",
"driver": "org.postgresql.Driver",
"user": "inmudv_inl",
"password": "er34_Sdes",

        "result_table_name": "Sanity_source_1", 
        "query": "select business_unit, norm_supplier, region, unit_price, unit_sold, zycus_id from sanity limit 10"
    }
],
"transform": [
    {
        "source_table_name": "Sanity_source_1",
        "result_table_name": "Sanity_transform_1",
        "plugin_name": "Copy",
        "fields": {
            "business_unit_copy": "business_unit",
            "region_cleansed": "region"
        }
    },
    {
        "source_table_name": "Sanity_transform_1",
        "result_table_name": "Sanity_transform_2",
        "plugin_name": "Replace",
        "replace_field": "region_cleansed",
        "pattern": "&",
        "replacement": "and"
    },
    {
        "query": "SELECT business_unit as business_unit, norm_supplier as norm_supplier, region as region, unit_price as unit_price, unit_sold as unit_sold, business_unit_copy as business_unit_copy, region_cleansed as region_cleansed, (unit_price * unit_sold) as spend, zycus_id as zycus_id  FROM Sanity_transform_2",
        "source_table_name": "Sanity_transform_2",
        "result_table_name": "Sanity_transform_3",
        "plugin_name": "Sql"
    }
],
"sink": [
    {
        "source_table_name": "Sanity_transform_3",
        "plugin_name": "Jdbc",
        "url": "jdbc:postgresql://192.168.15.77:1465/inmudvinl?currentSchema=inmudv_inl",
        "driver": "org.postgresql.Driver",
        "user": "inmudv_inl",
        "password": "er34_Sdes",
        "database": "inmudvinl",
        "table": "inmudv_inl.sanity_v1",
        "generate_sink_sql": true
    },
    {
        "source_table_name": "Sanity_transform_3",
        "plugin_name": "Console"
    }
]

}

Returns Error
{
"status": "fail",
"message": "'org.apache.seatunnel.api.table.connector.TableSource org.apache.seatunnel.api.table.factory.TableSourceFactory.createSource(org.apache.seatunnel.api.table.factory.TableSourceFactoryContext)'"
}

Our Request

We have been trying to adopt Seatunnel for data pipeline, and this error discourages use of the same. We have tried multiple things, played around with library file folders, Configurations, etc. but in vain.
Any recommendations would encourage the use of seatunnel for our production environment. The concept of this integration platform is solid, but face a lot of issues during even simple POCs, which is very much discouraging.