Exception in rendering!

Message: Cannot read properties of undefined (reading 'flat')

TypeError: Cannot read properties of undefined (reading 'flat')
    at GlossaryPageContent (<anonymous>:68090:38)
    at Db (<anonymous>:43358:18)
    at Gb (<anonymous>:43398:15)
    at X (<anonymous>:43546:15)
    at Hb (<anonymous>:43593:18)
    at Ib (<anonymous>:43583:13)
    at X (<anonymous>:43557:13)
    at Hb (<anonymous>:43593:18)
    at Gb (<anonymous>:43417:11)
    at X (<anonymous>:43546:15)