Fix AssertionError

✅ Solution

AssertionErrors in vllm often arise when unexpected conditions violate internal assumptions, such as encountering None values during processing, exceeding maximum sequence lengths without proper eviction, or datatype mismatches within attention layers. To fix this, carefully examine the traceback to identify the violated assertion, then modify the code to handle the unexpected condition gracefully (e.g., add checks for None, implement proper eviction strategies, or ensure datatype consistency). Thorough testing with diverse input scenarios is crucial to prevent recurrence.