Bukkit

I have a problem, I change the protection blocks for others and when reopening the server, the protection blocks are put back in. Who can help me please? This is my configuration, what's wrong? what should I change

Blocks:
- JUKEBOX 10
- WET_SPONGE 15
- BEACON 25
Flags:
- use allow
- greeting &aEntrando a la zona protegida de &6%player%
- farewell &aSaliendo de la zona protegida de &6%player%'
- flag.pvp.deny
- interact allow
Region:
SKYBEDROCK: false
AUTOHIDE: false
NODROP: false
NOSILKTOUCH: false
BLOCKPISTONS: false
LIMIT: -1
SAVETIMER: -1
PRIORITYOVERRIDE: false
Group:
LIMIT1: 0
LIMIT2: 1
LIMIT3: 3
LIMIT4: 7
LIMIT5: -1
LIMIT6: 0
LIMIT7: 0
LIMIT8: 0
LIMIT9: 0
BLOCKS1: JUKEBOX WET_SPONGE BEACON
BLOCKS2: JUKEBOX WET_SPONGE BEACON
BLOCKS3: JUKEBOX WET_SPONGE BEACON
BLOCKS4: JUKEBOX WET_SPONGE BEACON
BLOCKS5: JUKEBOX WET_SPONGE BEACON
BLOCKS6: JUKEBOX WET_SPONGE BEACON
BLOCKS7: JUKEBOX WET_SPONGE BEACON
BLOCKS8: JUKEBOX WET_SPONGE BEACON
BLOCKS9: JUKEBOX WET_SPONGE BEACON
Exclusion:
WORLDS: 'islandworld','Skyblock','Skywars','plotworld','world_nether'
PLACEMENT: false
Priority: 0

LINK: https://pastebin.com/mnz7qPHN

What happens is that ProtectionStones uses the WorldGuard plugin to protect a zone. When changing blocks, the block is unusable, but the region is still there. To fix it, I recommend going to the WorldGuard, the Worlds folder, and in the regions.yml folder of each world, manually deleting the protections.
A greeting :)