renderChatLog hook failing

Error: Error thrown in hooked function '' for hook 'renderChatLog'. html.on is not a function
    at Hooks.onError (:23678:24)
    at #call (:23660:36)
    at Hooks.callAll (:23615:17)
    at #callHooks (:27758:15)
    at #dispatchEvent (:27742:36)
    at :27715:26
    at async #render (:27055:5)
    at async #try (http://localhost:31004/scripts/foundry.mjs:7145:17) {stack: "Error: Error thrown in hooked function '' for…/localhost:31004/scripts/foundry.mjs:7145:17)", message: "Error thrown in hooked function '' for hook 'renderChatLog'. html.on is not a function", cause: TypeError: html.on is not a function
    at Ob…(http://localhost:31004/systems/conan2d20/con…}