after effects attempt to get an item address from a position outside of list length
hello,i'm kinda new here,but i really hope someone read this and help me..i use After Effects cc 2018
basically,i can't move my keyframes,nor highlight them (clicking),nor Easy Ease them,i'm also having problems with the graph,whevenever the error happened,i would highlight the keyframes (click and drag my mouse around the keyframes),go to the graph and drag the edges of the graph,because then the keyframes would also move,but now i can't move any of them..when i try to click on the graph an error text appears saying "after effects attempt to get an item address from a position outside of list length,error code 27:15"
someone please help me
