Fixing TypeError: Cannot read properties of undefined (reading 'toLowerCase') in JavaScript Code

Fixing TypeError: Cannot read properties of undefined (reading 'toLowerCase') in JavaScript Code

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How to Fix the TypeError: Cannot Read Properties of Undefined (Reading 'toLowerCase') in Discord.js
How to Fix the TypeError: Cannot Read Properties of Undefined (Reading 'toLowerCase') in Discord.js
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Problems with .toLowerCase()

Problems with .toLowerCase()
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