git push data stream erro

Question

I'm a beginner of github and i'm using github desktop to do git push.Here is the things: I have a repository that didn't use for a year. All the files in the repository are simple different vs project which contains my LeetCode solutions. Just one day agao, I start to reuse it and happened that error. Every time I finish one leetcode question and try to commit it. this happendsenter image description here. After a few times attempt, I found that how many vs project I added in the repository, how many erro object shows up. I tried onlie possible solutions, and nothing works. Some of the vs project can push successfully but some can't. I don't think they have any different. I'm not sure why this happen. Then I try to fix this by move all useful files to the new reposrity. I first create a new repository. Then I copy the "Solutions" folder (only useful folder of this repository) from the old repository and paste it to new repository. When this is done, I try to commit it. However, the same problems shows upenter image description here Is there anyone can help fixes this problem and tell me why this will happen, since it's even broken on a new repository.