[Vue warn]: Property "$createElement" was accessed during render but is not defined on instance.

When using vueCustomScrollbar in a modal window, this results in the error:
**[Vue warn]: Property "$createElement" was accessed during render but is not defined on instance.**

`<vue-custom-scrollbar class="scroll-area" :settings="scrollSettings"><div class="column"></div></vue-custom-scrollbar>`

Any suggestions would be nice.