Suddenly, I could not login into my JIMDO account, which is the hosting service I am using. So I could not post anything. I sent an enquiry to the support desk many times, but they did not reply to them. After more than a week, I got their reply. They apologized but they never mentioned why my account was suspended.
BTW, I finally got my web hosting service back. After getting my account back, I immediately saved all my data on the JIMDO service by using the software produced by HTTrack Website Copier. This was a very useful tool to save data quickly. That was easier than I thought.