[18:33:07] [main/INFO]: Loading for game Minecraft 1.16.2
[18:33:15] [main/FATAL]: A critical error occurred
net.fabricmc.loader.discovery.ModResolutionException: Found conflicting mods: exotic-matter breaks {sodium @ [*]}
at net.fabricmc.loader.discovery.ModResolver.findCompatibleSet(ModResolver.java:190) ~[fabric-loader-0.9.3+build.207.jar:?]
at net.fabricmc.loader.discovery.ModResolver.resolve(ModResolver.java:604) ~[fabric-loader-0.9.3+build.207.jar:?]
at net.fabricmc.loader.FabricLoader.setup(FabricLoader.java:202) ~[fabric-loader-0.9.3+build.207.jar:?]
at net.fabricmc.loader.FabricLoader.load(FabricLoader.java:192) [fabric-loader-0.9.3+build.207.jar:?]
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:127) [fabric-loader-0.9.3+build.207.jar:?]
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26) [fabric-loader-0.9.3+build.207.jar:?]
Caused by: net.fabricmc.loader.util.sat4j.specs.ContradictionException: Creating Empty clause ?
at net.fabricmc.loader.util.sat4j.minisat.constraints.cnf.Clauses.propagationCheck(Clauses.java:117) ~[fabric-loader-sat4j-2.3.5.4.jar:?]
at net.fabricmc.loader.util.sat4j.minisat.constraints.cnf.Clauses.sanityCheck(Clauses.java:97) ~[fabric-loader-sat4j-2.3.5.4.jar:?]
at net.fabricmc.loader.util.sat4j.minisat.constraints.MixedDataStructureDanielWL.createClause(MixedDataStructureDanielWL.java:81) ~[fabric-loader-sat4j-2.3.5.4.jar:?]
at net.fabricmc.loader.util.sat4j.minisat.core.Solver.addClause(Solver.java:401) ~[fabric-loader-sat4j-2.3.5.4.jar:?]
at net.fabricmc.loader.discovery.ModResolver.findCompatibleSet(ModResolver.java:187) ~[fabric-loader-0.9.3+build.207.jar:?]
... 5 more

mods: exotic-matter in facility-mc116-0.11.184.jar

Found conflicting mods: exotic-matter breaks {sodium @ [*]}

This is an intentional error message, the author of exotic matter has specified that you can't use it with Sodium.
The lack of FRAPI support may be one reason, tracked in #5.

As Lucy said, this is a temporary measure that mod’s author has added until Sodium and Exotic Matter are compatible. When FRAPI support is added, they will be compatible.

Until then, there’s nothing we can do, Exotic Matter is basically saying “crash if Sodium is present”. I’m going to close this as a duplicate of the issue Lucy mentioned.