When entering a car we disable the collison of the character so he dont take damages

when entering a car we disable the collision of the character ( so it can be attached to the car ) so he dont take damages
what should i do to make him take damages again
and if i enable the collision the character will keep bouncing with the car (it will keep flying)

Hard to say without more information but instead of using the Set Collision Enabled node you could try using the Set Collision Response node, so that the player will collide with things, but ignore certain types of objects, for instance, Vehicles.

this is just what i nead

its doesnt work in the multiplayer
its seems the node not replicated

ill try something may be the problem from me

i fixed the collision problem with some delay
but the player still dont take any damage when he attached to the car (i checked that he block the projectile)