If you mean ResearchGate: Please note that it is not a publisher and not a journal, you cannot "publish" a paper here. It is a platform for papers published in journals, or to present unpublished texts, data etc.
See also "Is ResearchGate a publisher?" in https://help.researchgate.net/hc/en-us/articles/14292596164753. This also means that ResearchGate does not have have an editorial board.