Identify the type of writing error in the sentence: I agree with your discussion post its alot harder to fix human resource problems when they're aren't any systems in place.

The sentence contains multiple writing errors that fall under the category of incorrect grammar or punctuation. One major issue is the lack of appropriate punctuation to separate independent clauses. The phrase "I agree with your discussion post" should be followed by a period or a semicolon instead of continuing directly into the next thought. This leads to a run-on sentence.

Furthermore, the phrase "its alot harder" contains a grammatical mistake where "its" should be replaced with "it's," the contraction for “it is.” Additionally, "alot" is a misspelling; the correct term is "a lot," which should be written as two separate words.

Lastly, the phrase "when they're aren't any systems in place" has an incorrect use of "they're," which is a contraction for "they are." The proper word in this context should be "there," which indicates existence. All of these errors contribute to a lack of clarity and professionalism in writing, characteristic of incorrect grammar or punctuation. This understanding of the types of writing errors can greatly enhance the overall quality of academic writing.