it is a link to the forum’s search function. You can enter the error messages you get and search for answers like this because many error messages have been discussed and solved in other topics already.
You also find other topics on water body mapping:
- Interpretation of GLCM (Texture) feature analysis for Water bodies
- Classification Sentinel-1 problems with MaxVer - #2 by ABraun
- Water Mask Threshold for bright vs. dark water bodies on the same SAR image
- SAR Water body extraction in the complex wetlands
- Supervised classification for sentinel 1 - #7 by ABraun