OK, I've had a look over and there's a couple of things to mention.

You can't post other people's work as your own, and there's quite a few posts like music videos you've uploaded to DTube, chapters from books and so on. This is considered plagiarism and isn't tolerated here.

That being said, going through your posts for the past month or so, no-one seems to have said anything to you about this, you've just been flagged. I could be wrong, as you've posted over 6,000 times so you may have been warned plenty before this, I can't tell for sure.

You've also used bid bots in the past on these plagiarised posts, which you just can't do. You can't post other peoples work and expect to get paid for it, and the community is coming down hard on people trying to do this.

If you are going to use someone else's work in a transformative way, you still need to cite your sources. I've written a beginner's guide for Steemit that you might find useful and informative: https://steemit.com/steemhelp/@johngreenfield/steemit-the-ultimate-beginner-s-guide-to-steemit

If you have any questions, get back to me and I'll be happy to help you any way I can.