disjunctiveFacets error

We use algolia and vue-instantsearch on 3 pages of our Vue/Nuxt application. One 2 of those pages, I’m intermittently getting the following error:

hasExpress is not defined in the disjunctiveFacets attribute of the helper configuration

I have hasExpress added as a facet in the configuration. Is there something else I need to do to make this function correctly? Here are the versions we’re using of everything. Please let me know if any additional information is needed.

“algoliasearch”: “^4.10.3”,
“vue-instantsearch”: “^3.8.1”,
“nuxt-edge”: “^2.16.0-27616340.013f051b”,
“vue”:“2.7.10”