Illegal type String of 1 argument of function formatDateTime. Should be a date or a date with time

This error message is indicating that the argument provided to the function formatDateTime is of type String, which is not a valid input. The argument should be a date or a date with time.

To fix this error, you should ensure that the argument passed to the function is either a date or a date with time, rather than a string. You can do this by converting the string to a date or by ensuring that the input is in the correct format before passing it to the function.

For example, if you have a string representing a date in the format "YYYY-MM-DD", you could convert it to a date object using the following code:

var dateString = "2022-01-01";
var dateObject = new Date(dateString);

Once you have a date object, you can pass it to the formatDateTime function as an argument:

var formattedDate = formatDateTime(dateObject);

Alternatively, if you have a string representing a date and time in a specific format, you could use a library like Moment.js to parse the string and convert it to a date object before passing it to the formatDateTime function:

var dateString = "2022-01-01 12:00:00";
var dateObject = moment(dateString, "YYYY-MM-DD HH:mm:ss").toDate();
var formattedDate = formatDateTime(dateObject);

By ensuring that the argument passed to the formatDateTime function is a valid date or date with time, you should be able to avoid the "Illegal type String" error.