explosive-cannon-shell recipt is deactivated by "playerBonuses.lua" script
but its needed as ingredient for artillery shell
one can activate the recipe with console command:
->
/c game.player.force.recipes["explosive-cannon-shell"].enabled = true
maybe @kizrak will change it in the script:
local recipesToDisable = {
...
["explosive-cannon-shell"] = true,
...
}