iiCommunism

Im having this problem when ever i want to join a server with the pixelmon reforged mod on it says this:(view image).This also happens when i try joining single player worlds except it dosent say anything and kicks me out.Does anyone know how to fix this as i am desperate to play with my friends on their server.Extra Information:The server is aternos and my friend implemented the mod to the server so i could only join if i also installed the mod.Im also reading how you can go to the minecraft launcher and just allocate more ram viya settings but with technic launcher all i do is press play and minecraft 1.12.2 pops up ready to play