Luis_ST

i would recommend you to use DataGenerator to create the json files automatically, the Forge example also use data generation, take a look at this

did you create a config (*.toml) for your mod? -> if yes show the classes where you create the config did you modify any config file from Forge/other Mods? -> if yes, use \n to create new lines in String values and check if the String values starts and ends with " did you use any dependencies? this is your error:

show your config classes

you can get the Entity (with cast the Player) via LootContext#getParamOrNull and LootContextParams.THIS_ENTITY

no, you need a custom Packet if you want to send data from server to client this is a terrible idea, do not send data each tick, send the data only if it changed

there are two ways: you use a custom Network Packet and sync the data via a SimpleChannel (doc). whenever the data changes override BlockEntity#getUpdateTag and retrun a CompoundTag with the data to sync, override BlockEntity#handleUpdateTag to handle the data sync on client. whenever the data changes you need to call BlockEntity#setChanged choose the way you prefer

why?

the message class needs only three static methods: encode with parameters: a message and a FriendlyByteBuf decode with parameters: FriendlyByteBuf, and returns an instance of your message handle with parameters: a message and a Supplier with NetworkEvent.Context when registering your message to a SimpleChannel you must provide these three methods (via a BiConsumer for encode, a Function for decode and a BiConsumer for handle) you can take a look at this doc for about how to register messages

in Item#inventoryTick you have a Level parameter, use a instanceof to check if it's a ServerLevel then you can cast the Level to a ServerLevel

please post the following file: .minecraft/logs/debug.log and use https://gist.github.com/ to upload it

delete this server config file

did you register the ItemProperties for a Bow in FMLClientSetupEvent

your are on client so there is no Server

you need to set the RenderType of your Block to RenderType.cutout via ItemBlockRenderTypes.setRenderLayer in FMLClientSetupEvent

make sure the Optifine version is compatible with your Forge version, if they match post debug log

use your IDE to find the correct import

subscribe PlayerEvent.TabListNameFormat and do there whatever you want

you can look at the PipeBlock it's basically a CableBlock

update Forge to the latest version, also 1.16.5 requires java 8

post debug log

post full debug log, and please use https://gist.github.com/ to upload the file

click into the console window, press CTRL + C go back to the Forum and press CTRL + V

Player#getCapability you need a custom Network Packet (Message) and a SimpleChannel, you can read the doc

it's a Mod, i think the full name is Applied Energistics

you need to use ServerLevel#getDataStorage then check the check if it's an instance of ServerLevelData, then use ServerLevelData#setGameTime