Cannot read properties of undefined (reading 'readAt')

[m-nathani]

Got an error on intercom on my web sentry account:

https://sentry.io/share/issue/53eb376a3ec64c978a4e3448d0a92e0e/

Error appears to be here:

{snip} owser();let p=void 0!==r?c.parts.find((e=>e.id===r)):(e=>e.readAt?Object(m.s)(e):Object(m.c)(e))(c),{messageType:h}=p||{};h=h||"adminReply", {snip}