What does the error "ScannerError: while scanning a double-quoted scalar" mean?

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This error means that there is a problem with the syntax or formatting of a double-quoted scalar (a string or text value enclosed by double quotes) when it is being scanned or read by the interpreter or scanner. This error often occurs in YAML or other similar data formats when there is a mismatch between the opening and closing quotes, or if there are special characters or escape sequences within the string that are not properly formatted.