Please, please, save me. There is a boundary in the sea

If you are using the ocean plugin and turn on skylihgt, you will get a border on the ocean. When I turn off the skylight, the colors change too much. How do I fix this?

The colors have changed so much that I can’t turn off the skylight. If there is a solution, please save me.
스크린샷 2024-09-05 183753