Here's the error I get when trying to delete files...

Command:    DELE index.html
Response:   550 Delete operation failed.

Here's the error I get when trying to upload files...

Command:    OPTS UTF8 ON
Response:   200 Always in UTF8 mode.
Status: Connected
Status: Starting upload of C:\wamp\www\.DS_Store
Command:    CWD /var/www/html
Response:   250 Directory successfully changed.
Command:    TYPE A
Response:   200 Switching to ASCII mode.
Command:    PASV
Response:   227 Entering Passive Mode (76,185,76,101,78,222).
Command:    STOR .DS_Store
Response:   553 Could not create file.
Error:  Critical file transfer error
Status: Retrieving directory listing...
Command:    TYPE I
Response:   200 Switching to Binary mode.
Command:    PASV
Response:   227 Entering Passive Mode (76,185,76,101,23,94).
Command:    LIST
Response:   150 Here comes the directory listing.
Response:   226 Directory send OK.
Status: Directory listing successful
Response:   421 Timeout.
Error:  Connection closed by server
Status: Disconnected from server

IM running windows OS and using filezilla FTP client