TypeError: Cannot read properties of undefined (reading ‘0‘)

This error occurs when you try to access a property (in this case, the property with key ‘0’) of an undefined variable or object. It means that the variable or object you are trying to access does not exist or is not defined.

To fix this error, you need to make sure that the variable or object you are trying to access is defined and has a value before accessing its properties. You can use conditional statements or null/undefined checks to avoid this error.