Several times I have had e-mails, supposedly from ResearchGate, saying that a researcher hasa asked for a paper, but when I click on the link in the e-mail it takes me to an irrelevant ResearchGate page that does not have any (functional) link to send the paper to the person who asked for it. So I can send it as a message, right? No, because the message function does not work for me either - it will not accept any name in the 'To' box. So we all have website bugs, but there is no 'Contact ResearchGate' e-mail address or form or link anywhere that I can see to report this. These are usually at the bottom on a web page, but you can never get to the bottom of the page - it just adds more and more 'stuff'.
So - how do you ask ReseachGate why their website does not work? Or do we just switch to another academic networking platform?