Hi Muhannad,
Welcome to JavaRanch. Sorry about your fail status. the following
thread is also related to this.
https://coderanch.com/t/555631/java-Architect-SCEA/certification/Failed-SCEA-essay
1. Write a mail to oracle and meantime start working on improving your solution.
2. I think for better score and safer side, you could address all the points provided by the examiner.
3. By Gods grace you will clear if you rectify your solution. Candidates who had taken exam before August 27th get 30 days grace period and submit their assignment. If they didn't succeed the second time, they can resubmit but even if you pass, the certification will be awarded only if mandatory training is taken.