Unknown error while validating raw metadata in local instance.

[NishaSharma14]

Describe the bug
I spinned up an instance locally by performing the following steps:

1. git clone https://github.com/ElixirTeSS/bioschemas-validator.git
2. git checkout develop
3. $ pip install -r requirements.txt
4. streamlit run website_st.py

2022-12-14 10:27:44.241 INFO    matplotlib.font_manager: generated new fontManager

Collecting usage statistics. To deactivate, set browser.gatherUsageStats to False.

2022-12-14 10:27:44.952 Did not auto detect external IP.
Please go to https://docs.streamlit.io/ for debugging hints.

  You can now view your Streamlit app in your browser.

  Network URL: http://172.25.141.140:8501

To Reproduce
Steps to reproduce the behavior:

1. Go to http://172.25.141.140:8501
2. Enter Raw metadata
3. Press Ctrl + Enter
4. See error

TypeError: string indices must be integers
Traceback:
File "/home/nisha/anaconda3/lib/python3.7/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 564, in _run_script
    exec(code, module.__dict__)
File "/home/nisha/bioschemas-validator/website_st.py", line 107, in <module>
    markdown_text = report.generate_report_summary(result)
File "/home/nisha/bioschemas-validator/web/report.py", line 13, in generate_report_summary
    """

Expected behavior
It should display any proper validation error if my raw metadata has.

Screenshots

Operating System
Windows WSL.

Can anyone please help if I am missing something out here?