Abnormal fluctuations in my model

Hi professor,
First I am grateful for your reply.
Recently,I’m working at a dsge model with Financial Accelerator.I have already completed a steady-state solution.But the function graph I got from dynare occurred Abnormal fluctuations. What kind of problem may have happened in my model?
Look forward to hearing from you.
Best regards

Most often it’s a timing problem. But it may also be a feature of the model.

Thank you,Professor.I will try to adjust the number of periods.If there are any other problems,I will update here again.