Plugin causes my weapons to do less damage, both Vanilla and Custom

[Alaxandar66]

Bug report

• [ X] I have checked other issues to make sure this is not a duplicate.

Describe the bug

When I add Mypet (I tried the two most recent builds, on the most recent version of Paper) All of the weapons on the server stop doing their normal damage. For example, without the plugin, a Netherite sword will kill a creeper in 3-4 hits, when I add the plugin it takes 7-8 hits, and a wooden sword can take up to 11 hits.

Removing the plugin solves the issue immediately, adding it again, even older versions, and deleting the plugin folder, immediately "nerfs" all of our weapons.

To Reproduce

Sadly besides adding the plugin to my server, nothing else causes or stops this from happening. Even with a fresh install I still have this issue.

Expected behavior

MyPet would work spectacularly, and it wouldn't take 7 hits to kill a creeper

Actual behaviour

Every mob (and player) becomes tankier, or weapons immediately do significantly less damage

Additional context

https://www.dropbox.com/s/cj1pbzl0a5alf65/ticket.zip?dl=0

Bukkit/Spigot/Bungee Build/Version:
git-Paper-113

MyPet Build/Version:
MyPet-3.12-SNAPSHOT-b#1704

[Jakllp]

Is this still the case?
And if so:
Is your Protocollib-Version still 5.0.0-SNAPSHOT-b597?

[Jakllp]

Because I could not reproduce this error