Value of key '' is not a string! Cannot translate the value of keypath ''. Use the v

vue-i18n.esm.js?a925:14 [vue-i18n] Value of key 'promotion_apply1' is not a string! warn @ vue-i18n.esm.js?a925:14 vue-i18n.esm.js?a925:14 [vue-i18n] Cannot translate the value of keypath 'promotion_a

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