I mounted all of my files on the nextcloud data folder mounted an nfs

Hello, I was running out of storage on my pi 4 hosting my nextcloud server + I also wanted some reliability so I decided to mount an nfs shared folder from my synology nas directly to the nextcloud data folder. I copied every file (Including hidden ones) and everything seemed file. However when I try to upload a file to nextcloud it displays a Forbidden error. Theoretically all of the permissions are set right so any help would be really appreciated.
Thanks for reading