Can't access functions info from portal

Hi, I've got some functions running on azure but since the begining of the week, the access from the portal is very chaotic, launching some generic error "Can't start runtime, look at the logs.". This is very annoying as I I am trying to understand why the last part of my process is failing and can't access the debug messages from portal.

This is the last attempt id :

Zone : Occidental Europe
Name : landcgraphbuilderprod
Session Id: dc131357ce584e1a984b7201565cf147
Timestamp: 2018-01-05T19:33:02.716Z

Thanks