Well delete the block: Block location: World: (742,217,638), Chunk: (at 6,13,14 in 46,39; contains blocks 736,0,624 to 751,255,639), Region: (1,1; contains chunks 32,32 to 63,63, blocks 512,0,512 to 1023,255,1023)
And if you can what is that connected to?