UI 500 when opening a report or tests if one of the metrics or tests ends with an error

[c0t0ber]

import logging

import numpy as np
import pandas as pd

from evidently.metrics import ColumnDriftMetric
from evidently.report import Report
from evidently.ui.base import Project
from evidently.ui.workspace import Workspace

logging.basicConfig(level=logging.DEBUG)

def create_evidently_project(workspace_name: str, project_name: str) -> Project:
    ws = Workspace.create(workspace_name)
    if projs := ws.search_project(project_name):
        proj = projs[0]
    else:
        proj = ws.create_project(project_name)

    return proj


proj = create_evidently_project("test_error_bug", "test_error_bug")

data = pd.DataFrame(
    {"vals": [np.nan] * 100}
)
ref_data = pd.DataFrame(
    {"vals": [1] * 1000},
)

ref_data.to_parquet("ref_data.parquet", index=False)
used_features = ["vals"]
rep = Report(
    metrics=[
        *[ColumnDriftMetric(column_name=column) for column in used_features],
    ],
)
rep.run(reference_data=ref_data, current_data=data)

try:
    rep._inner_suite.raise_for_error()
except Exception as e:
    print(e)

rep.save(f"test_error_bug/{str(proj.id)}/snapshots/{str(rep.id)}.json")

If u open generated report you get 500 and

  File "evidently\src\evidently\report\report.py", line 212, in _build_dashboard_info
    html_info = renderer.render_html(test)
  File "evidently\src\evidently\metrics\data_drift\column_drift_metric.py", line 322, in render_html
    if result.drift_detected:
AttributeError: 'MetricResult' object has no attribute 'drift_detected'