There is no one "correct" way to fix JSON format, as the format itself is designed to be flexible and easily readable. However, there are a few common ways to optimize or "fix" JSON data:
-Using JSONLint: This is a free online JSON validator that will check your data for any syntax errors or problems. Simply paste your JSON data into the site, and it will return any errors and suggestions for how to fix them.
-Checking for proper JSON syntax: Remember that JSON data must be enclosed in curly braces ({}), and each key/value pair must be separated by a comma. Make sure that your data is following this basic format before trying to further optimize it.
-Formatting your JSON data: Once you have checked for any syntax errors, you can then format your JSON data for readability. This is not required, but can often make your data much easier to work with. There are a few different ways to format JSON data, but a simple method is to use an online JSON formatter (such as this one: https://jsonformatter.curiousconcept.com/). This will take your unformatted JSON data and return it in a much more readable format.
Hopefully this has helped you to understand how to fix JSON format errors. Remember that the JSON format is designed to be flexible, so there is no one "correct" way to format your data. Just try to keep an eye out for any syntax errors, and format your data in a way that makes it easy for you to work with.