Strength and haste effects are not adding to the config file of this plugin

try INCREASE_DAMAGE for strength and/or INCREASE_SPEED for haste (?)

for a reason I don't remember minecraft names some of the effects differently in-code and in-game, so yeah

INCREASE_DAMAGE is works but INCREASE_SPEED doesnt

Its just SPEED
https://hub.spigotmc.org/javadocs/spigot/org/bukkit/potion/PotionEffectType.html