Hello! Thank you for reaching out about this issue. It sounds like you're experiencing some problems with your configuration file becoming invalid after manual edits, specifically with non-default items/commands and skinned items.
To help prevent these issues, we recommend using a JSON validator such as https://jsonlint.com/ before saving your config file. This will ensure that the syntax is correct and can help avoid errors during the reload process. Additionally, make sure to double-check any custom permissions or commands you've added to confirm they are properly formatted.
If the problem persists even after validating the JSON, please let us know so we can investigate further. We appreciate your patience and understanding while we work on resolving this.