A player of my 2007 mod reported the following engine error dialog

vdisp_0007 (2) at 9.9 0.0 -78.7 in contact with player/tyranid/tyranid.mdl (2) at 1.$ 1.$ 1.$, crash. dist = -1, minq = 999999999999999999980000000000000000000000000000000000000000000000000000000000.00000

(maybe slightly more or less 0's)

What does it mean? Anything I can to do stop it?