Erro na distro

Esta aparecendo esse erro na minha distro, mas não faço ideia do que significa (obs: até agora na afetou nada no servidor, mas gostaria de resolver esse erro)

ERRO:

[11/08/2018 11:44:46] [Warning - Items::loadFromXml] Duplicated money item 11519 with worth 10000!
[11/08/2018 11:44:46] [Warning - Items::loadFromXml] Duplicated money item 11520 with worth 10000!
[11/08/2018 11:44:46] [Warning - Items::loadFromXml] Duplicated money item 11521 with worth 10000!
[11/08/2018 11:44:46] [Warning - Items::loadFromXml] Duplicated money item 10743 with worth 10000!
[11/08/2018 11:44:46] [Warning - Items::loadFromXml] Duplicated money item 10744 with worth 10000!
[11/08/2018 11:44:46] [Warning - Items::loadFromXml] Duplicated money item 10745 with worth 10000!
[11/08/2018 11:44:46] [Warning - Items::loadFromXml] Duplicated money item 10746 with worth 10000!