Fix ZeroDivisionError

✅ Solution

ZeroDivisionError occurs when dividing by zero, often when a divisor is incorrectly computed or derived from user input. Ensure that variables used as divisors are validated to be non-zero before division operations. Specifically check user-provided arguments like `max_model_len` or `hash_block_size` and raise an exception or set to a minimum valid value (e.g., 1) if they are zero.