I cannot use the mod and the game because when I enter the game, a message appears saying "mod alexsmobs requires citadel 2.6.0 or above currently, citadel is not installed"

[tuan2912]

[DomixCZE]

you have to install this https://modrinth.com/mod/citadel it tells you in the message

[HeavyLvy]

rage bait