Running HomeAssistant core 0.114.4 and Logbook,History, Services, Template and Events all give the error "Error while loading page ". These all worked on 0.113.3. This is the error in the log when each of the problematic page is selected:
2020-08-27 08:41:00 ERROR (MainThread) [frontend.js.latest.202007160] https://hass.domain.com:8123/frontend_latest/chunk.cf565e41b8a8dce0642a.js:133:204 TypeError: this.shadowRoot.querySelector(...) is null
Seems the issue was cause by connecting via an old link prior to upgrading to 0.114.4. Simply going back to the overview and refreshing the page fixed it.