Hello
well, the fact that it runs offline might be due to the fact that PsychoPy is much better in guessing what image you intend to show than PsychoJS is. PsychoJS requires the correct path, extension, filename-case aso. which PsychoPy does not.
The error message seems to be, more or less, the same as before (Experiment terminates right after the start - #6 by wakecarter).
So, your code adaptations did not solve the problem.
You might want to give access to your project or upload a toy-version of your experiment incl. stimuli.
Best wishes Jens