Last friday, my web application piwik went down ! I restored the directory web/html in the previous night situation, and all come back fine !
I searched the difference between before and after the restoration. It seems the file tmp/assets/asset_manager_core_js.js was missing just before the restoration.
What is the function of this file ? and what can be the origin of its lost ?
I already had exactly the same problem, one week before (friday too), at about the same hour.
I still have 4 days to prevent the next occurrence
Thx for your help