eB Spicer Engine Error

Hello Folks,

We are running eB 15.4 and we keep getting Spicer Engine Error. Because of this .dgn files are not getting FTRed. I tried adding eB.Service.SpicerEngine.dll but I got an error saying incorrect format.

We urgently need support for this issue guys. Quick reply would be very much appreciated.

Also see screen shots below.