Blueprint does not inherit from' error

i downloaded a character from mixamo with one animation -sword slash- . I retargeted the character and the animation so i can use it as my third person character player . I set the animation up through the ThirdPersonCharacter BP (as shown in pics) . Now I’m trying to set up the animations so when I’m In Air in doesn’t interrupt it (following tutorials on youtube) . But now I’m getting this error . what am i doing wrong? (i provided pictures so you guys can see my set ups)!