TypeError: Cannot read properties of undefined (reading 'slice')

[christmex]

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JavaScript Error

TypeError: Cannot read properties of undefined (reading 'slice')
    at parseKey (<anonymous>:8:51706)
    at e.value (<anonymous>:8:52333)
    at e.value (<anonymous>:8:51599)
    at e.value (<anonymous>:8:51421)
    at e.value (<anonymous>:8:50405)
    at e.value (<anonymous>:8:50051)
    at m.value (<anonymous>:8:40007)
    at t.format (<anonymous>:8:112138)
    at Bc (<anonymous>:8:113555)
    at bf (<anonymous>:3:186649)

Reproduction Steps

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1. …

User Agent

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36