nstructions on previous messages say to replace dev with prod not to add APP_ENV=prod so you just replaced I hope. Be sure to do not create duplicate lines in the .env file.
I put a # before APP_ENV=dev the line and added a new line APP_ENV=prod . I think that makes it a comment. This seemed to work and I was able to create a few users but them my VM froze.
When you run php bin/console c:c as root account this can create issues. The command should be run not as root but as normal SSH user.
I was a normal user, no sudo
The user I am logged in to is part of the www-data group but I see permission in the /var/www/uvdesk/var/cache/* dir are read only for group and other
drwxr-xr-x # www-data www-data 4096 Feb 19 00:22 dev/
drwxr-xr-x # www-data www-data 4096 Mar 3 18:46 prod/
The garbage can is on the home page but it was blocked by the dev black line on the bottom. There's only a hint of the top of the can that is visable but I saw you can shrink that dev line to just an icon by clicking on the x