I'm not the original author so please contact the author and download his addon! I don't think that my uploaded one is even nearly up to date. Here's the link to the original addon:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=481440358&searchtext=drowning+indicator

All addons that I have uploaded were because our server had problems with finding the addons in the first place so I reuploaded them. Since then many subscribed my TTT collection and I don't want them loose all the addons if I just delete them.

This doesn't really work, can you help?