Please do following
1. Keep “From Email Address” and “SMTP Username” and this plugin “From Email” same email address.
2. Remove one home/xxxxx from home/xxxxx/home/xxxxx/public_html/…….. ( you have added 2 times home/xxxxx) in your forwarder setup ( point no 6 in https://www.shamimsplugins.com/docs/front-end-pm-pro/getting-started-2/email-piping/)
Then test and let me know.