A new major version (3.0.0) of the dnd5e game system came out for foundry, but unfortunately the new version breaks WIRE. Here are some of the errors I've encountered in the dev console:   
A new major version (3.0.0) of the dnd5e game system came out for foundry, but unfortunately the new version breaks WIRE.
Here are some of the errors I've encountered in the dev console:
