Run them without the slash / in the console
With the world, be sure that the folder is named world, or change the world name setting
(Note, Bedrock does not support mod jars or a mods folder)
(note this is just the forum for AMP, not Hostinger support, but we can point you in the right direction)
You’d have to get the files somehow, I bet there’s some guides online on how to do so.