Can't use datapacks in realms when file name is longer than 100 characters

I have been playing on my realm with friends and we decided to add some datapacks but when i added them none would show up and if we got them to show up they couldn't be used and some one made all the water dissapear like it was still there but we would fall like it wasn't there we couldn't craft things either

They are zipped and there was one that needed to be unzipped it was an advancement addon and when i tried that it wouldn't even let me upload the world i uploaded them

and also some datapacks need the /reload command but that doesn't exist in realms is there a workaround or an other command with the same effects

Thanks anyway!