The issue in detail:
Softdevice: S112 v6.1.0
We are using nrf52 as a peripheral device on one side and the nrf connect application as a central device on the other. While the Application discovers devices for the first time, peripherals occur in the scan list, and then the central initializes the connection status and the bond is created.
After many connect statuses between the same peers, while we are trying to connect the GATT, we get GATT error 133. After I click on connect, it takes 30 secs of delay and after that, we receive Error 133. so when we remove data from the scanner and we established again the bond the connection will be fixed but the problem appears one more time after many other connect statuses.