On the current version of the modpack (1.5.4 as of writing this), many of the in game guidebooks are unreadable, I have added no other mods, datapacks, or resource packs to the installation.

Attaching a screenshot showing an example of the issue:

If single player, remove emojiful. Since it still hasn't been addressed will likely be removed next update.
See InnovativeOnlineIndustries/Emojiful#78