A little bit of help needed :)

Hello! I’m pretty new to programming and right now i’m having a weird problem that i can’t imagine how to fix. For some reason in the unity engine game runs smoothly but the moment i build and run it i get an error. I think the problem is caused by explosions that i imported ( In the engine the explosions happen. After i build the project , objects won’t explode and it throws an error ). I’ll attach a picture. Thanks for paying attention :3

Well, can’t tell what’s going wrong other than it appear that Detonator is trying to create a material and the shader is missing.

Perhaps you forgot to add the shader to the Always Included Shaders list in Graphics Settings?