Bukkit

# Should the plugin log some messages that are useful for debugging?
DEBUG: false

# Do you want to turn off the automatic updates of ChestShop?
TURN_OFF_UPDATES: true
# Do you want to turn off the automatic notifications for new development builds?
TURN_OFF_DEV_UPDATE_NOTIFIER: false
# Do you want to include some values of this config in the metrics? (This will not leak sensitive data but help in the development process)
INCLUDE_SETTINGS_IN_METRICS: true

# How large should the internal caches be?
CACHE_SIZE: 1000

# The default language when the client's language can't be found.
DEFAULT_LANGUAGE: "en"
# Should the plugin try to use a language file that matches the client's locale setting?
USE_CLIENT_LOCALE: true

# What containers are allowed to hold a shop? (Only blocks with inventories work!)
SHOP_CONTAINERS:
- "CHEST"
- "TRAPPED_CHEST"

# (In 1/1000th of a second) How often can a player use the shop sign?
SHOP_INTERACTION_INTERVAL: 250
# Do you want to allow using shops to people in creative mode?
IGNORE_CREATIVE_MODE: true
# Do you want to allow using shops to people who have access to it due to their permissions? (owners are always ignored)
IGNORE_ACCESS_PERMS: true
# If true, people will buy with left-click and sell with right-click.
REVERSE_BUTTONS: false
# If true, people will be able to buy/sell in 64 stacks while holding the crouch button.
SHIFT_SELLS_IN_STACKS: false
# If true, people will be able to sell/buy everything available of the same type.
SHIFT_SELLS_EVERYTHING: false
# What can you do by clicking shift with SHIFT_SELLS_IN_STACKS turned on? (ALL/BUY/SELL)
SHIFT_ALLOWS: "ALL"
# Can shop's chest be opened by owner with right-clicking a shop's sign?
ALLOW_SIGN_CHEST_OPEN: true
# If true, when you left-click your own shop sign you won't open chest's inventory, but instead you will start destroying the sign.
ALLOW_LEFT_CLICK_DESTROYING: true

# If true, if the shop is empty, the sign is destroyed and put into the chest, so the shop isn't usable anymore.
REMOVE_EMPTY_SHOPS: false
# If true, if the REMOVE_EMPTY_SHOPS option is turned on, the chest is also destroyed.
REMOVE_EMPTY_CHESTS: false
# A list of worlds in which to remove empty shops with the previous config. Case sensitive. An empty list means all worlds.
REMOVE_EMPTY_WORLDS:
- "world1"
- "world2"

# First line of your Admin Shop's sign should look like this:
ADMIN_SHOP_NAME: "Admin Shop"
# The name of the economy account which Admin Shops should use and to which all taxes will go
SERVER_ECONOMY_ACCOUNT: ""
# The uuid of the economy account for the Admin Shop. Useful for fake accounts as normally only accounts of players work
SERVER_ECONOMY_ACCOUNT_UUID: 00000000-0000-0000-0000-000000000000
# Percent of the price that should go to the server's account. (100 = 100 percent)
TAX_AMOUNT: 0
# Percent of the price that should go to the server's account when buying from an Admin Shop.
SERVER_TAX_AMOUNT: 0
# Amount of money player must pay to create a shop
SHOP_CREATION_PRICE: 0
# How much money do you get back when destroying a sign?
SHOP_REFUND_PRICE: 0
# How many decimal places are allowed at a maximum for prices?
PRICE_PRECISION: 2

# Should we block shops that sell things for more than they buy? (This prevents newbies from creating shops that would be exploited)
BLOCK_SHOPS_WITH_SELL_PRICE_HIGHER_THAN_BUY_PRICE: true

# Maximum amount of items that can be bought/sold at a shop. Default 3456 is a double chest of 64 stacks.
MAX_SHOP_AMOUNT: 3456

# Do you want to allow other players to build a shop on a block where there's one already?
ALLOW_MULTIPLE_SHOPS_AT_ONE_BLOCK: false
# Can shops be used even when the buyer/seller doesn't have enough items, space or money? (The price will be scaled adequately to the item amount)
ALLOW_PARTIAL_TRANSACTIONS: true
# Can '?' be put in place of item name in order for the sign to be auto-filled?
ALLOW_AUTO_ITEM_FILL: true

# Enable this if you use BungeeCord and want players to receive shop notifications on other servers
BUNGEECORD_MESSAGES: false

# Do you want to show "Out of stock" messages?
SHOW_MESSAGE_OUT_OF_STOCK: true
# Do you want to show "Full shop" messages?
SHOW_MESSAGE_FULL_SHOP: true
# How many seconds do you want to wait before showing notifications for the same shop to the owner again?
NOTIFICATION_MESSAGE_COOLDOWN: 10

# Can players hide the "Out of stock" messages with /cstoggle?
CSTOGGLE_TOGGLES_OUT_OF_STOCK: false
# Can players hide the "Full shop" messages with /cstoggle?
CSTOGGLE_TOGGLES_FULL_SHOP: false
# Do you want to show "You bought/sold... " messages?
SHOW_TRANSACTION_INFORMATION_CLIENT: true
# Do you want to show "Somebody bought/sold... " messages?
SHOW_TRANSACTION_INFORMATION_OWNER: true

# If true, plugin will log transactions in its own file
LOG_TO_FILE: false
# Do you want ChestShop's messages to show up in console?
LOG_TO_CONSOLE: true
# Should all shop removals be logged to the console?
LOG_ALL_SHOP_REMOVALS: true

# Do you want to stack all items up to 64 item stacks?
STACK_TO_64: false
# Do you want to use built-in protection against chest destruction?
USE_BUILT_IN_PROTECTION: true
# Do you want to have shop signs "stick" to chests?
STICK_SIGNS_TO_CHESTS: false
# EXPERIMENTAL: Do you want to turn off the default protection when another plugin is protecting the block? (Will leave the chest visually open - CraftBukkit bug!)
TURN_OFF_DEFAULT_PROTECTION_WHEN_PROTECTED_EXTERNALLY: true
# Do you want to turn off the default sign protection? Warning! Other players will be able to destroy other people's shops!
TURN_OFF_SIGN_PROTECTION: false
# Do you want to disable the hopper protection, which prevents Hopper-Minecarts from taking items out of shops?
TURN_OFF_HOPPER_PROTECTION: false
# Only allow users to buy/sell that have access to the sign's protection? (E.g. LWC protection)
CHECK_ACCESS_FOR_SHOP_USE: false
# Do you want to protect shop chests with LWC?
PROTECT_CHEST_WITH_LWC: false
# Of which type should the container protection be? Possible type: public, private, donate and on some LWC versions display
LWC_CHEST_PROTECTION_TYPE: "PRIVATE"
# Do you want to protect shop signs with LWC?
PROTECT_SIGN_WITH_LWC: false
# Of which type should the sign protection be? Possible type: public, private, donate and on some LWC versions display
LWC_SIGN_PROTECTION_TYPE: "PRIVATE"
# Should the chest's LWC protection be removed once the shop sign is destroyed?
REMOVE_LWC_PROTECTION_AUTOMATICALLY: true
# Should LWC limits block shop creations?
LWC_LIMITS_BLOCK_CREATION: true

# Do you want to only let people build inside WorldGuard regions?
WORLDGUARD_INTEGRATION: false
# Do you want to only let people build inside region flagged by doing /region regionName flag allow-shop allow?
WORLDGUARD_USE_FLAG: false
# Do you want ChestShop to respect WorldGuard's chest protection?
WORLDGUARD_USE_PROTECTION: false

# Do you want to only let people build inside GriefPrevention claims?
GRIEFPREVENTION_INTEGRATION: false

# Do you want to only let people build inside RedProtect regions?
REDPROTECT_INTEGRATION: false

# Do you want to deny shop access to unlogged users?
AUTHME_HOOK: true
# Do you want to allow shop access to unregistered users? (Example: registration is optional)
AUTHME_ALLOW_UNREGISTERED: false

# How much Heroes exp should people get for creating a ChestShop?
HEROES_EXP: 100.0

# Add icons and make item names hoverable in transaction messages when ShowItem is installed?
SHOWITEM_MESSAGE: true

 Version 3.11

Expected players to be able to create their own shops with out OP.

Everything is okay with Luckperms and PowerRanks.

I am having the same issue.  Players without op have permissions on LuckyPerms and it still isn't working.  I'm not sure what is up.  I've checked my WorldGuard settings/flags/permissions/etc as well as AdvancedRegionMarket stuff and I cannot work out what is wrong.