TransformerError: An unexpected critical error was encountered

You have a mixin error. Sponge forge has not been updated for 1.19.2, mixins are made by the sponge team however any mod can use them (however that mod is responsible for them).

Your error does not state the mod responsible for the error. However there is a easy want to find it. If you use my program of Mixin Detector, it will detect all mods that have mixins. After that filter by the file that caused the error (in your case its valhelsia_structures.refmap.json). This should give you only a single mod left which is the mod causing the error. Once found take a look at there site to see if there is a fix for optifine.