Enhanced error handling in key functions

[Prureddy]

I've optimized the code by consolidating exception handling into a single approach using a dictionary for better efficiency and readability. Redundant code segments have been refactored to avoid repetition, ensuring a streamlined structure.

Regarding the order of exceptions, I've organized them in specificity, which aligns with best practices for error handling in Python.

As for printing and returning, the code previously printed the error and returned an error message. I've adjusted the error handling function to return the error message directly, simplifying the structure and making it more cohesive. This change avoids unnecessary duplication between printing and returning.

The updates have significantly improved the code's clarity, maintainability, and adherence to best practices. Thank you for your feedback, which greatly contributed to these enhancements!tionthis is the answer so i am raising an PR in github and give me a title and description