Facing issue with gpt 3.5 turbo model for Assistant

I have started using OpenAI assistant API since August 2024. Till now It was working fine.
Since last week I am facing issue with that model. When I tried my assistant in playground it gave me error : Run Failed. Something went wrong.
But when I changed the model to gpt-4-preview it is giving me output.
I just want to understand why gpt-3.5-turbo is now giving error

Does anyone know what is the root cause to this issue.

Can anyone help me to resolve this issue without changing the model.
I want to use gpt 3.5 turbo only.