Report refresh

Hi, 

I have an issue with refreshing my report on powerbi service. 

The report refreshes fine in desktop, but when I refresh it online it doesn't work. 

The gateway should be fine since I used it for several reports and it doesn't cause an issue. 

I think something goes wrong with my table because I use weeks instead of regular datetypes. 

Below you can find the original report, the refresh history and how it looks after refreshing. 

If you have any suggestions or need more information feel free to respond. 

Thanks in advance, Sam 

datasource refresh historyreport 1 failedhow it should lookreport 2 failed