s1lverdrag07

I crashed my server and made it impossible to rejoin by placing a seared brick block into the layer of bedrock that's supposed to be the bottom of the world (removed via storage capsule station). Is there any way for me to now remove that block in order to be able to use the world? I'd upload the crash report, but there's no point; I know what did it. Would I need to delete and redownload Tinkers' Construct?