Pictures needed.

Judging by the look of the pole, it would be better to replace it or cover it with thin stainless steel, but this will not last long. But drainage is a real problem here - if it's not directed properly, your problem will not go away. May be worth checking whether the gutters are doing their job. I've gutters that have a self-cleaning system https://leaffilter.pissedconsumer.com/review.html . Also, look at how the water flows during rain, and perhaps you will need to redirect the drainage.