Old report wont load with PBI RS january 2019

[Pi_R]

Hello,

I have an issue with the PBI RS january 2019 update.

One of my reports wont load anymore. This report has been created with PBI desktop august 2018 and was working fine when published on PBI RS august 2018. Now I have this error when I try to visualise it on PBI RS january 2019:

Then I openned and saved it with PBI desktop january 2019 but I cant publish it anymore on PBI RS january 2019.

This report is critical for my company and I dont know what to do 😕

I tried to publish it on PBI cloud and it worked just fine. 

Thank you for your help