If you want to keep your clans when there’s a new update, you should take the file out of the current folder and put in into the new clangen folder after you extract it.
Someone is working on updating the online version, but it's more challenging and currently, only one person is working on it. So it is most likely going to take a while
Hi! I think I may be able to help! I have the same device. I don't use the online version but I believe that resetting the site data will work but will delete all your existing clans. Something else I could help with is getting the released version (this version) if you want to try it.