hey mate 
since its beta addons is not sync with game data and new things.
it has most bugs and can’t be real but u can visit details discord link and download beta versions there hope it work for u
Ah yes I see they’ve made an announcement since
Attention! when updating, ensure you’re getting the zip file from wago addons in the link below.
Avoid Curse Forge! for v11 Beta
Reason: curse forge uses caches and these caches update slowly.
Why this is bad: we might have sent a new version fixing stuff and the download for this version might be not available on curseforge yet.https://addons.wago.io/addons/details-damage-meter-standalone/versions?stability=alpha (edited)
This does not work