Error uploading from LRCC to 500px using Photo Upload plugin

rcarca

Amateur, Enthusiast, Canonphile
Apr 11, 2012
240
2
UK
raphoto.me
I am getting an error message when I try to upload from LR6/CC to 500px using the Photo Upload plugin as follows:

Photo Upload: Error uploading to 500px
Error communicating with 500px: ‘HTTP status 422, {path={1="has already been taken"}} Status = 422’

This is total gobbledegook to me... any suggestions for curing it?

Thanks

Richard