BeePrint partially works with Ghost 5 and Marlin

Hi everyone, I have a Flyingbear ghost 5 with Sergey's marlin firmware. I tried to install BeePrint and everything went smoothly but the interface works partially. I receive all the data regarding the various temperatures correctly, I can set the temperatures, I can home the x/y and z axes, I see the files correctly inside the sd but for example I can't move any of the axes, I can't delete the files from the sd and above all I can't load new files into the sd. If I try, the loading stops around 3%, the BeePrint interface crashes and the printer screen displays the message "Error Sd Mount", reloading the page the interface becomes visible again but it no longer communicates with the printer. In some other topic I had read that with this firmware some people had found it good so I don't know what the problem could be