I've got an question about the transfers in our competition. I have not sold any player in the last 4 days. Every other team sells all of its players. It can not be the price, because they are not high. In addition other managers ask way higher prices for their players.
My question: Is there an bug of another issue with my team/account??
This isn't a bug. Transfers are random and are based on factors such as age, price, position, rating, etc... Even with these factors, you can't tell when you'll make a sale also there's no guarantee that a player will sell quickly.
As the manager of your team, you'll have to figure out a way to sell your players.