Disappointed plugin

who can I give money to set up this damn plugin as it should be?
it doesn’t work at all. Clients can’t sign in, constantly redirects. I can’t post anything more than $ 1. You have to do everything manually. In general, the word press support service wrote to me today that this plugin is incompatible with their site and they can do nothing.

WordPress support wrote you that it was incompatible with their site? Which WordPress support? And what incompatibility was specified?