This is the output from Filezilla whenever I try and upload something:
Status: Starting upload of C:\Users\Joe\Desktop\bf4fu.jpg
Command: CWD /public_html/images
Response: 250 OK. Current directory is /public_html/images
Command: TYPE I
Response: 200 TYPE is now 8-bit binary
Command: PASV
Response: 227 Entering Passive Mode (198,91,81,6,120,179)
Command: STOR bf4fu.jpg
Response: 552 Disk full - please upload later
Error: Critical file transfer error
Status: Starting upload of C:\Users\Joe\Desktop\bf4fu.jpg
Command: CWD /public_html/images
Response: 250 OK. Current directory is /public_html/images
Command: TYPE I
Response: 200 TYPE is now 8-bit binary
Command: PASV
Response: 227 Entering Passive Mode (198,91,81,6,120,179)
Command: STOR bf4fu.jpg
Response: 552 Disk full - please upload later
Error: Critical file transfer error