把floodgate配置里面的那个proefix项目去掉就行了
# In Floodgate bedrock player data is send encrypted
# The following value should point to the key Floodgate generated.
# The public key should be used for the Geyser(s) and the private key for the Floodgate(s)
key-file-name: key.pem
# Floodgate prepends a prefix to bedrock usernames to avoid conflicts
# However, certain conflicts can cause issues with some plugins so this prefix is configurable using the property below
# It is recommended to use a prefix that does not contain alphanumerical to avoid the possibility of duplicate usernames.
username-prefix: ""
像我这样配置floodgate然后重启就行了