Information you will need
Step 1: Go to Application -> click on your application that has permission issues.
Step 2: On Application Overview, you will find your application path and application sftp username
Alter permissions via SSH
Step 3: Connect via SSH on the server application (follow this guide if you don't know how to connect to your server via ssh https://help.bunnyshell.com/en/articles/4156347-connect-to-a-server-via-ssh)
Step 4: (this command should be run from ssh, inside your server) :
sudo chown -R appUser:appUser appPath
Please replace appUser and appPath the information from Step 2.
As an example for the app in the screenshot you would run:
sudo chown -R ftpuser61f36:ftpuser61f36 /var/www/wordpress28557/app
# the second command is if you have OpenLiteSpeed
sudo chown -R nobody:nogroup /var/www/wordpress28557/app/lscache
Alter permissions via the OPS menu
If you are not as comfortable with SSH, then there is an alternative for you. You can create an automation that will set those credentials for you.
Step 3: Navigate to: Virtual Machine -> select VM -> OPS -> Automations -> Add new Automation Action
Step 4: Select +Add for New Script
Step 5: Fill in the details (action title and in the script editor add the commands) as shown below:
Make sure that you customize the commands with the information from Step 2!
Step 6: Save changes
Step 7: Untick the action (you do not want to leave it on) and then from the menu option Run action