Add Exception Handling to parse_task Function

[coderabbitai]

The function in currently lacks proper exception handling mechanisms. This could lead to unhandled errors if unexpected input or conditions are encountered during its execution, especially given the function's interaction with external data (HTML parsing and attribute access). It is recommended to implement try-except blocks to manage potential exceptions effectively, and to validate the existence and correctness of the HTML structure before attempting to parse it. This issue was identified in the context of PR #24.