Thank you for your update.
We have already deleted and edited files in the library, and i have already use edge browser, so there should be corresponding data available for the Audit Log report. Since the report is not being generated, I believe this issue needs further investigation.
Please escalate this matter to the backend support team for a thorough investigation, including remote assistance and background log collection. Their advanced tools and permissions should help resolve the issue effectively.
Thank you for your assistance.