Not able to import data in elastic through logstash

I am using logstash to import data in elastic search. I am using .conf file to import data in index in elastic. Every time I run the .conf file I get the following message repeatedly and index DOES NOT get created.
<
[DEBUG] 2021-05-02 22:56:26.174 [[main]<mongodb] mongodb - collection_data is: {"institutions_metadeta"=>{:name=>"institutions_metadeta", :last_id=>"608ea384a1441c4d77453a12"}}
[DEBUG] 2021-05-02 22:56:26.199 [[main]<mongodb] mongodb - Updating watch collections
[DEBUG] 2021-05-02 22:56:26.279 [[main]<mongodb] mongodb - Added institutions_metadeta to the collection list as it matches our collection search
[DEBUG] 2021-05-02 22:56:26.283 [[main]<mongodb] mongodb - since table already exists
[DEBUG] 2021-05-02 22:56:26.290 [[main]<mongodb] mongodb - placeholder already exists, it is {:table=>"logstash_since_institutions_metadeta", :place=>"608ea384a1441c4d77453a12"}
[DEBUG] 2021-05-02 22:56:26.291 [[main]<mongodb] mongodb - No new rows. Sleeping. {:time=>5}
[DEBUG] 2021-05-02 22:56:27.376 [pool-3-thread-1] jvm - collector name {:name=>"ParNew"}
[DEBUG] 2021-05-02 22:56:27.377 [pool-3-thread-1] jvm - collector name {:name=>"ConcurrentMarkSweep"}
[DEBUG] 2021-05-02 22:56:29.023 [logstash-pipeline-flush] PeriodicFlush - Pushing flush onto pipeline.
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Welcome to our community! :smiley:

That would suggest that it's not seeing new rows because you've run the config before.

Can you post your config?