My bookmarks can't be accessed after rebooting until I manually go through each directory

I just installed Ubuntu 20.04 and I bookmarked my second partition (I named it D) in the file manager so it can be easily accessible. Unfortunately, every time I reboot the computer, it seems that the bookmarked link crashes. I fix it by opening the specific directory by going in "+Other Locations" and clicking on it. Also I had a shortcut for a cloned repository from github, which I couldn't access too after rebooting. Is there anyway I can fix that so I don't need to do this every time I turn on my PC.