Need Help With Configuring ObbyDestruct

I need to set it so i can destroy bedrock... but its not working...

## - Main Configuration - ##
# You can disable the plugins entire purpose and just use the custom durability!
TurnOff_Obby_TNT: false
Use_Drop_Limiter: true
# This value subtracts the number from the total amount of obsidian in the blast.
# So say the total amount of Obsidian is 10 in the blast and the Drop_Limit_Amount
# is 7, only 3 Obsidian will drop from the blast.
Drop_Limit_Amount: 0
# - Extra Settings - #
H20_TNT: false
Use_TNT_entity: true
# - Logger Settings - #
Report_Explosions: false
# - Custom Block Configurations - #
#ENCHANTMENT_TABLE:
#Durability: 0
#Break_Naturally: true
# Example:
ENCHANTMENT_TABLE:
Durability: 1
Break_Naturally: true
BEDROCK:
Durability: 8
Break_Naturally: true