Request entity too large

Hi,

Ive used the Peronal Gateway to keep one of my reports updated frequently for the past four months.

As of last week the schedual refresh, aswell as the "update now", suddenly stopped working! 

What does work is publishing from the Desktop client.

The error im facing (Hope the swedish will not confuse you too much):

The source is a 5-6mb pbix-file stored in onedrive.

Thanks in advance for any type of help in this matter!