What does the error message "Evaluation failed: ReferenceError: _0x5b9d0e is not defined" indicate after applying javascript-obfuscator?

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This error message indicates that there is a reference to a variable or function called "_0x5b9d0e" which is not defined. This can happen when the code is obfuscated and the original variable or function names are changed, but another piece of code is still referring to the original names. To fix this issue, it is necessary to update the referring code to use the new obfuscated names.