I upgrade a first instance from 1.4 to 1.5 : ok
I upgraded second instance on second server : automatic upgrade went well . It said : upgrade successful.
Now trying to go to piwik I get error : Fatal error: Exception thrown without a stack frame in Unknown on line 0
I looked at the error log and only have :
[20-jun-2011 20:13:36] PHP Fatal error: Exception thrown without a stack frame in Unknown on line 0
then I deleted the whole install, reuploaded file from latest.zip file : same error.
2 questions :
1- could it be relatedt to php version : the working instance is at level 5.2.11 , non working version is at level 5.2.9
2- how to get back to version 1.4 knowing I don’t want to loose data (yes I should have taken a backup . . . grrrr )
Thanks for any good idea