Sorry, not a bug in BI: We've changed the icons from size 32 to size 64, so the names used in Omniwood are not up to date. Unfortunately, the author of that mod can only be reached on Discord, which I don't want to join. I've sent you a patch on the forum (I hope it really was you, not somebody else!); perhaps you can forward it to the Omniwood author if you have Discord.
For everybody else: Just open the file prototypes/bioindustries.lua in Omniwood, and change these lines:
./prototypes/bioindustries.lua:23: {icon="__Bio_Industries__/graphics/icons/ash.png",
./prototypes/bioindustries.lua:33: {icon="__Bio_Industries__/graphics/icons/fertiliser_32.png",
./prototypes/bioindustries.lua:43: {icon="__Bio_Industries__/graphics/icons/advanced_fertiliser_32.png",
./prototypes/bioindustries.lua:66: {icon="__Bio_Industries__/graphics/icons/ash.png",
./prototypes/bioindustries.lua:78: {icon="__Bio_Industries__/graphics/icons/fertiliser_32.png",
./prototypes/bioindustries.lua:90: {icon="__Bio_Industries__/graphics/icons/advanced_fertiliser_32.png",
Change the filename:
"ash.png" --> "ash_64.png"
"fertiliser_32.png" -- > "fertiliser_64.png"
"advanced_fertiliser_32.png" --> "advanced_fertiliser_64.png"
About 3 lines after each of these lines, change
"icon_size=32," --> "icon_size=64,"
This should fix the crash.