[BUG] Problem of getting vehicle's speed.

[rusztamas]

Hi! I've been making a speedometer for two damn days now, i finished it yesterday, with all it's positioning and bugs, but i just cant fix one of them.
It says: "attempt to perform arthimetic on a boolean value" for this line:
 

local jarmuHealth = getElementHealth ( jatekosVehicle ) / 10

What the problem could be? Any fix for it? It only writes on enter, but the script is working fine, after that, even it's value is not nil. Can i forbid this resource, from outputting anything into debugscript?

Edited June 5, 2017 by Dutchman101
fix topic title for section guidelines

[idarrr]

Show me your full code.