Hi Michiel,
I logged in as Bitnami via Putty and entered each command:
bitnami@ip-XXX:~$ sudo chown -R bitnami:daemon /opt/bitnami/apps/wordpress/htdocs/wp-content/cache
bitnami@ip-XXX:~$ sudo find /opt/bitnami/apps/wordpress/htdocs/wp-content/cache -type f -exec chmod 664 {} \;
bitnami@ip-XXX:~$ sudo find /opt/bitnami/apps/wordpress/htdocs/wp-content/cache -type d -exec chmod 775 {} \;
bitnami@ip-XXX:~$ sudo chown bitnami:daemon /opt/bitnami/apps/wordpress/htdocs/wp-config.php
bitnami@ip-XXX:~$ sudo chmod g+w /opt/bitnami/apps/wordpress/htdocs/wp-config.php
bitnami@ip-XXX:~$
The command line editor just returned without a message back on each step, so i assume it executed them without error. However I am still unable to selectively delete files or folders in the Uploads directory, from sFTP.
Status: Retrieving directory listing of "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads"...
Status: Listing directory /opt/bitnami/apps/wordpress/htdocs/wp-content/uploads
Status: Directory listing of "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads" successful
Status: Retrieving directory listing of "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads/sucuri"...
Status: Listing directory /opt/bitnami/apps/wordpress/htdocs/wp-content/uploads/sucuri
Status: Directory listing of "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads/sucuri" successful
Status: Deleting "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads/sucuri/sucuri-lastlogins.php"
Command: rm "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads/sucuri/sucuri-lastlogins.php"
Error: rm /opt/bitnami/apps/wordpress/htdocs/wp-content/uploads/sucuri/sucuri-lastlogins.php: permission denied
Command: rmdir "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads/sucuri"
Error: rmdir /opt/bitnami/apps/wordpress/htdocs/wp-content/uploads/sucuri: received failure with description 'Failure'
Status: Retrieving directory listing of "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads"...
Status: Listing directory /opt/bitnami/apps/wordpress/htdocs/wp-content/uploads
Status: Directory listing of "/opt/bitnami/apps/wordpress/htdocs/wp-content/uploads" successful
Best,
Nick