Customize form suddenly got error related to Sage library

SOLVED

Hi all, I have a customize form that have been working for ages. On recent changes, it got error on customer side, while on my local PC the form is still working. Looking at the error, it is related to Sage library. The only difference from customer server and mine was the version. They are using Sage 200 2017 while I am using 2019. It have been working for years but now it have error? Has the library been deprecated recently or something?