I run Piwik since 2008 and today I got the first error after the auto-update to the latest version (released today):
An error occurred
Cannot connect to the database:
SQLSTATE: Syntax error or access violation: 1231 Variable ‘sql_mode’ can’t be set to the value of ‘NO_ZERO_IN_DATE’
This may be a temporary issue, try refreshing the page. If the problem persists please contact your Piwik administrator.
Can you help me?