name_type_exception: Invalid name

After run: root@eos:/opt/JungleTestnet# ./start.sh --delete-all-blocks --genesis-json genesis.json

/opt/JungleTestnet/stderr.txt

268651ms thread-0   chain_plugin.cpp:151          plugin_initialize    ] initializing chain plugin
268651ms thread-0   chain_plugin.cpp:229          plugin_initialize    ] Deleting state database and blocks
268652ms thread-0   chain_plugin.cpp:280          plugin_initialize    ] Using genesis state provided in '/opt/EOS-Jungle-Testnet/genesis.json'
268652ms thread-0   chain_plugin.cpp:299          plugin_initialize    ] Starting up fresh blockchain with provided genesis state.
268691ms thread-0   producer_plugin.cpp:466       plugin_initialize    ] 3010001 name_type_exception: Invalid name
Name is longer than 13 characters (!!_YOUR_PRODUCER_NAME_!!!)
    {"name":"!!_YOUR_PRODUCER_NAME_!!!"}
    thread-0  name.cpp:11 set
268691ms thread-0   main.cpp:113                  main                 ] 3010001 name_type_exception: Invalid name
Name is longer than 13 characters (!!_YOUR_PRODUCER_NAME_!!!)
    {"name":"!!_YOUR_PRODUCER_NAME_!!!"}
    thread-0  name.cpp:11 set
rethrow
    {}
    thread-0  producer_plugin.cpp:466 plugin_initialize

CryptoLions / EOS-Jungle-Testnet

name_type_exception: Invalid name #12