Seen on 6.2.3 CE (Snapshot: 2020.07.20 22:11:50).

Steps to reproduce

1) Open Pages app.

2) In root (but works also in subs), create a new page using the Basic template, no need to set anything else but the page name. (Other templates also seem to throw the same error.)

3) Delete the page. The errors are written to the console immediately after confirming the yellow deletion alert.

 Stacktrace: MAGNOLIA-7855stacktrace.txt