Hi there,
I’m glad to hear it works on a new map!
The reason it failed on your existing world is likely due to cached data from an older version of the mod stored in your save file. When you update to a new version, sometimes the old fluid logic or entity data in the save doesn't sync correctly with the new code, leading to the issues you experienced.
If you wish to continue playing on your current save without starting over, I recommend downgrading to the previous version of the mod that you were using before.
Here is how you can do it:
Go to the Xiten mod page on the Factorio Mod Portal.
Click on the "Downloads" tab.
Find the specific version you were using previously and download it.
Replace the new version in your mods folder with this older one.
However, for the best experience and to access new features, using a new save with the latest version is always the most stable option.
Thank you for your patience and for supporting the Xiten mod!
Best regards, hoang0109