I solved this problem. It was conflict Blender with other version Blender

Hello. I have stupid question. I download Octane Render Prime (Free tier) for Blender. It is cool but I have one problem: I don't see my render in Image Viewer. I start render and I see process but when render becomes 100% then the image disappears.

Blender. v2.93_octane2020
NVIDIA GeForce RTX 3070 ...