Specified Worskpace not found - Link from Power Bi...

Hi everyone,

This is my first message on the PBI community so I apologise already if I'm not clear or experienced enough.

I have an issue that appeared this morning regarding a Dataset link.
I am using a Dataset from a colleague of my company. This colleague shared with me the Dataset already and I was using it in my Power BI Desktop to build a new report and uploaded it into the Power BI Service.

Until now, everything was working fine. No error while refreshing and the data (from her Dataset) were up to date on my reports.
Since this morning, I am having an issue that says "Specified Worskpace is not found". So the report is not refreshing neither online or Desktop. But I can still see the Dataset available for import on Power Bi Desktop. On the Power Bi Service online, I have access to that Dataset, I can even share it (i tried sharing it with myself already, useless).
She did not change anything on her side, neither did I.
So i don't know what may be blocking.
I don't know if you need more informations to try to help me, please ask if needed.

Thank you in advance for your time,