A number of people have reported getting a 'script not found' error when trying to use PhoenixCard. This is because you are trying to burn an image that is not compatible with the PhoenixCard application (i.e. a 'dd' image).
On the Software/Image Download section of the Pine64 wiki, there are many images available, but only the images specifically labelled so are burnable with PhoenixCard.
The images labelled as being a 'DD image' are of a fixed size (typically 8GB, 16GB, 32GB, 64GB) and are intended for burning via the dd command in a terminal, with Win32DiskImager, or with Rufus or similar software (such as ApplePi Baker or Etcher on a Mac).
See also this similar thread.
On the Software/Image Download section of the Pine64 wiki, there are many images available, but only the images specifically labelled so are burnable with PhoenixCard.
The images labelled as being a 'DD image' are of a fixed size (typically 8GB, 16GB, 32GB, 64GB) and are intended for burning via the dd command in a terminal, with Win32DiskImager, or with Rufus or similar software (such as ApplePi Baker or Etcher on a Mac).
See also this similar thread.