I can not see the skin and my game does not run

Hello I need help for a few days my Minecraft has 2 big problem: 1.When I run it I have to go in task manager and "end of task" 2 Minecraft 32 bit launcher while I am in 64bit. 2. I do not see the skin on the premium server even my own skin but the others he saw me with. Thank you for your help sorry for the fault I'm French