Camptocamp alertmanager plugin object(...)(...) fetch is not a function error

When I config the camptocamp alertmanager plugin as a datasource, it can be successfully updated, but also get an Object(…)(…).fetch is not a function error. The same error occurs when I query from the dashboards. Does anyone know what’s going on?
By the way, the grafana version is v7.1.1 and alertmanger plugin version is v1.0.0.

this is the plugin you are using?

And you are building it from source?

Might be best to make an issue in that third-party repo?