Particle Shop with Mac 10.14.6

Hi there, I'm not sure if I'm in the right place but have recently purchased Particle Shop and am excited to try it out.  Unfortunately when I launch it from PSCC it just crashes.  The odd time I get taken to its interface my image layer doesn't show up so there's nothing to add brush strokes to.  I'm on a mac and have requested assistance - the replies I've got so far have been for windows then half mac and half windows and have to do with emptying my cache.  

Has anyone run into this problem and do I have to delete my whole Library cache and if I do that and then reinstall, will that actually fix the problem?

TIA if anyone can shed light on this and either confirm that Particle Shop is compatible with PSCC or not.