Error while running rasa shell

while running rasa shell i am getting an error. i am using rasa --version

Rasa Version : 2.8.12 Minimum Compatible Version: 2.8.9 Rasa SDK Version : 2.8.2 Rasa X Version : 0.39.3 Python Version : 3.7.8 Operating System : Windows-10-10.0.19041-SP0

rasa shell ┌────────────────────────────────────────────────────────────────────────────────┐ │ Rasa Open Source reports anonymous usage telemetry to help improve the product │ │ for all its users. │ │ │ │ If you’d like to opt-out, you can use rasa telemetry disable. │ │ To learn more, check out Rasa Telemetry. │ └────────────────────────────────────────────────────────────────────────────────┘ 2021-10-30 13:25:17 INFO rasa.model - Loading model models\20211026-135816.tar.gz… Traceback (most recent call last): File “c:\users\iron man p\appdata\local\programs\python\python37\lib\runpy.py”, line 193, in run_module_as_main “main”, mod_spec) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\runpy.py”, line 85, in run_code exec(code, run_globals) File "C:\Users\iron man P\AppData\Local\Programs\Python\Python37\Scripts\rasa.exe_main.py", line 7, in File "c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa_main.py", line 118, in main cmdline_arguments.func(cmdline_arguments) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa\cli\shell.py”, line 123, in shell rasa.cli.run.run(args) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa\cli\run.py”, line 111, in run endpoints = AvailableEndpoints.read_endpoints(args.endpoints) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa\core\utils.py”, line 173, in read_endpoints nlg = read_endpoint_config(endpoint_file, endpoint_type=“nlg”) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa\utils\endpoints.py”, line 29, in read_endpoint_config content = rasa.shared.utils.io.read_config_file(filename) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa\shared\utils\io.py”, line 585, in read_config_file return read_validated_yaml(filename, CONFIG_SCHEMA_FILE) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa\shared\utils\io.py”, line 569, in read_validated_yaml rasa.shared.utils.validation.validate_yaml_schema(content, schema) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa\shared\utils\validation.py”, line 144, in validate_yaml_schema
yaml_file_content, reader_type=[“safe”, “rt”] File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\rasa\shared\utils\io.py”, line 352, in read_yaml yaml_parser = yaml.YAML(typ=reader_type) File “c:\users\iron man p\appdata\local\programs\python\python37\lib\site-packages\ruamel\yaml\main.py”, line 138, in init ‘typ "{}"not recognised (need to install plug-in?)’.format(self.typ) NotImplementedError: typ "[‘safe’, ‘rt’]"not recognised (need to install plug-in?)

What is your rasa shell command?