despite the scare mongering by some indignant and ill informed abers, usually it is because you have over pressed the submit button and the site thinks you are spamming and so any posts by you in that 24 hour period, 12-12, are removed automatically as a safeguard.
The technical team will remove the auto suspension and re-instate your zapped ID, but not all posts are returned as the ed gopes thru them to check content.
with the site experiencing difficulties anyway, it is easy to inadvertantly over post.