unexpected json.decoder.JSONDecodeError

[angelika233]

Describe the bug
Hi! I'm writting this issue because all my great expectations stopped working in the previous week. They're run on pandas dataframe and json files used to work fine, but since last week each of them gives the same error. Extra data: line 1 column 8 (char 7). I have not made any changes to my environment and have even tried running it on different ge versions, but the issue persists. Could you please help me resolve this? Thank you!

To Reproduce

  {
    "data_asset_type": null,
    "expectation_suite_name": "my_data.demo",
    "expectations": [
      {
        "expectation_type": "expect_column_max_to_be_between",
        "kwargs": {
          "column": "updated_at",
          "min_value": 1
        },
        "meta": {}
      },
      {
        "expectation_type": "expect_column_max_to_be_between",
        "kwargs": {
          "column": "yesterdaycount",
          "min_value": 1
        },
        "meta": {}
      },
      {
        "expectation_type": "expect_table_row_count_to_be_between",
        "kwargs": {
          "min_value": 15000
        },
        "meta": {}
      },
      {
        "expectation_type": "expect_column_values_to_not_be_null",
        "kwargs": {
          "column": "backlog"
        },
        "meta": {}
      },
      {
        "expectation_type": "expect_column_values_to_not_be_null",
        "kwargs": {
          "column": "backlog_1"
        },
        "meta": {}
      }
    ],
    "ge_cloud_id": null,
    "meta": {
      "citations": [],
      "great_expectations_version": "0.14.1"
    }
  }

gives an error

json.decoder.JSONDecodeError: Extra data: line 1 column 8 (char 7)

Expected behavior
I except this json file to work and in this case pass expectations

Environment (please complete the following information):

• Operating System: [e.g. Linux]
• Great Expectations Version: [0.14.1] but other version have the same issue
• Data Source: [pandas]
• Cloud environment: [prefect] but for local run is the same

Additional context
The problem occured after ge release but I did not upgrade my ge version by then