"Hey! For those of you having issues with summoning Auroracle, that's been fixed. I also had the same problem yesterday, so today I disabled all the mods I had including obviously the Starlight River and saved my character to the cloud next to my world, then proceeded to uninstall Terraria, tModLoader and delete the Terraria files on the folder "C:\Users\Marcos Liberata\Documents\My Games" and the Steam library, which in my case is in "D:\SteamLibrary\steamapps\common".

And finally I proceeded to restart and reinstall Terraria, tModLoader and the mods. I hope it works for you."

Credit to DarkSpace
https://steamhost.cn/steamcommunity_com/profiles/76561199123578552