Piwik encoutered an error: Interface 'Psr\Log\LoggerInterface' not found


(Kate Kruchko) #1

My website is working on CakePHP. It was OK, Piwik was working a few days ago, but now I am getting this error message:
"Piwik encoutered an error: Interface ‘Psr\Log\LoggerInterface’ not found (which lead to: The root container has not been created yet.)"
Does anybody know how to fix it?
UPD: command ‘composer require psr/log’ has no effect, the same error