Blurprint Runtime Error

I am working on Free Runner Game . for moving in right & left axis i set an array of 3 index … when i try to move it move only 2 array
pics are attaching plz help me out…
may be i am unable to explain my question but u will find once u have seen error

The array indexes start at 0. They cannot have negative values. If you have 5 lanes in LaneY, you could do something like this:

If you only have 3 lanes, set the max to 2. This way you will have 3 indexes: 0, 1 and 2.

Why are you even multiplying things by -1?

Error Gone … Thanks But player is not moving on right side as shown in Pics … Plz help me out am stuck here from long time

error solved but player not swiping to right sideplz help me out

got the soltion … thanku buddy