The "Unsupported Media Type" error typically indicates that Automoderator is unable to recognize your YAML.

Please ensure that your file is saved as UTF-8 without BOM and utilizes the appropriate .yaml or .yml.

To ensure the proper usage of YAML, please use spaces (not tabs) and the correct --- separators between rule blocks.

Validate the syntax with a tool like YAML Lint, and then test by uploading one rule at a time.

Also, please review Reddit's updated Automoderator schema, as field names or formats may have changed.

If you can share any error details (like line numbers or JSON output), that would help us pinpoint the issue faster.

If the problem continues, please send the error message. I hope I could help you.