A couple things:

1. If you don't own the mlflow experiment you need ot have edit permissions on the experiment (needed for logging). Default artifact locations in DBFS (`dbfs:/databricks/mlflow-tracking/`) require explicit write permissions

2. The location you are writing to, make sure you have proper entitelemnts to write to that location.

3. Unity Catalog volumes require `USE CATALOG` and `USE VOLUME` privileges (if you are using Unity Catalog).

Hope this helps, Louis.