Identify the type of error that is found in the following sentence: Problems that don't have an obvious answer should be referred to an employees supervisor.

The sentence contains a punctuation error, specifically regarding the use of the possessive form. The phrase "an employees supervisor" should include an apostrophe to indicate that the supervisor belongs to the employee, making it "an employee's supervisor." Punctuation plays a critical role in clarifying meaning by indicating pauses, ownership, and connections between ideas. In this case, without the apostrophe, the sentence implies a general reference to any employee's supervisor rather than indicating that it is specifically about a single employee. Proper punctuation ensures the sentence conveys the intended meaning accurately.