Fix ZeroDivisionError

✅ Solution

ZeroDivisionError usually occurs when dividing a number by zero, commonly when a configuration parameter related to block size or maximum sequence length is set to zero. To fix this, add validation checks to ensure that arguments like `block_size`, `max_model_len`, or `hash_block_size` are strictly positive integers before being used in division operations. Raise an informative error if any of these parameters are zero to prevent the engine from initializing with invalid configuration.