Finish a Game (Connect Photon with external server for multiplayer video game, and fix some bugs) -- 2

Hello, we have a video game project, similar to the concept of clash royale, Some people already work in it But we require someone to help us with the servers, Its multiplayer works with photon and we want to connect it to an external server for which we need information to acquire , in addition to that we want to fix some errors of the characters, UI, missing elements and connect the store and its respective products -Unity 3D -Photon -Firebase -Android / iOS -AWS - C #