Of your 5 answers,
- 5 have quality-related flags (4 "not an answer", 1 "very low quality")
- 2 were deleted for their quality, 1 was deleted because the question was deleted.
- 1 has a downvote
- 0 have upvotes
Your answers themselves aren't that poorly written but they do come across as stabs in the dark, or for other distributions (with guesswork for Ubuntu), and several sections of existing answers are essentially telling the user what to Google for. Not unhelpful but not answer material. This is what comments are for (what you can do when you have 50 reputation).
Unfortunately you're stuck in a hard place. The ban is completely automated. You have to overturn it yourself. The site moderators can't help you directly. Not yet anyway.
I will message a CM on your behalf to try and expunge some of the older answers contributing toward the ban but —assuming they want to help— please note that you'll need to improve the level of your answer to avoid stepping straight into another ban.