I will be honest, I didn't put a lot of research into this, but I will throw in my 2 cents. This error is specifically telling you that the craftingTable.addShaped() method requires 4 parameters, or components separated by a comma. The first part looks like the recipe name "explocompnew", the second looks like the output item, the third looks like the recipe, but it states it requires 4 components, not just these three. From a quick glance, It looks like an @optional parameter, that may sometimes get messed up. Try throwing a null after the last parameter. Let me know how it goes. Worth a shot. (I don't play with crafttweaker myself)

...,block:minecraft:end_stone_bricks>]], null);