Exception in rendering!

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

TypeError: Cannot read properties of undefined (reading 'flat')
    at GlossaryPageContent (<anonymous>:79450:38)
    at Db (<anonymous>:53762:18)
    at Gb (<anonymous>:53802:15)
    at X (<anonymous>:53950:15)
    at Hb (<anonymous>:53997:18)
    at Ib (<anonymous>:53987:13)
    at X (<anonymous>:53961:13)
    at Hb (<anonymous>:53997:18)
    at Gb (<anonymous>:53821:11)
    at X (<anonymous>:53950:15)