Process Pixels problem: ‘failed to open stream: Permission denied’

The problem now looks like a permissions problem. Please make sure that the script can write to the pixels/ directory, and the admin/temp/ directory.

You can see the detailed permissions tutorial here: https://milliondollarscript.com/installation/tutorials/chmod-permissions-tutorial

If there is a main1.png file in the pixels/ directory, please delete it and try to process the pixels again.