Error Message Resource Pack

ChiefC11

What does this server error mean?

[20:39:40] [Server thread/ERROR]: [ItemsAdder] [Pack] ERROR: please remove the resource-pack setting from server.properties file. It's in the root folder of the server. Remove it and restart.

I use MCPacks to host my resource pack, however, when I run iazip this error is shown in console. I have done every step right.

ChiefC11

I also get this message when first booting up the server

it never loads even though it says it will