RFC CallReceive error

I'm not sure if I'm posting it on the right community but definitely is with HCI-DS and IBP.

So I'm running a task with a template of ProductMaster and this error occured.

RFC CallReceive error <Function /SAPDS/RFC_ABAP_INSTALL_RUN: RFC_ABAP_MESSAGE- L0 cannot be interpreted as a number.

We are running S4HANA 1610 and IBP 1611. Note, I'm only running a template with ProductMaster by just testing if we can transfer data to IBP. The L0 value came from "0MATERIAL_ATTR_SOP".BRGEW mapped to WEIGHT column in Query_Join. Is this a common issue or is the data/vale from source is not correct?

Cheer,

R-jay