ETL is not pushing Firebase Data to BigQuery Properly

Job ID: 36187539

Budget: ₹400 – ₹750 INR

My connection between Firebase Events data into BiGQuery was working fine but suddenly I am seeing data discrepancy.

When I check the data on GA, I see correct data but when I look at the BigQuery analytics table, I don't see correct data.

Sometimes data is correct, but mostly it's not. Need help from an expert who can look into this and suggest a solution.