Extension not working in latest Codeception version

[davidsneighbour]

Error:

❯ ./vendor/bin/codecept run unit Accounting
Codeception PHP Testing Framework v5.0.6 https://helpukrainewin.org
[Seed] 1590290626
PHP Fatal error:  Uncaught Error: Class "Codeception\Platform\Extension" not found in /home/patrick/github.com/getbooka/booka/vendor/redcomponent/teststatistics/src/Teststatistics.php:17
Stack trace:
#0 /home/patrick/github.com/getbooka/booka/vendor/composer/ClassLoader.php(571): include()
#1 /home/patrick/github.com/getbooka/booka/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile()
#2 [internal function]: Composer\Autoload\ClassLoader->loadClass()
#3 /home/patrick/github.com/getbooka/booka/vendor/codeception/codeception/src/Codeception/Subscriber/ExtensionLoader.php(110): class_exists()
#4 /home/patrick/github.com/getbooka/booka/vendor/codeception/codeception/src/Codeception/Subscriber/ExtensionLoader.php(63): Codeception\Subscriber\ExtensionLoader->bootExtensions()
#5 /home/patrick/github.com/getbooka/booka/vendor/codeception/codeception/src/Codeception/Codecept.php(90): Codeception\Subscriber\ExtensionLoader->bootGlobalExtensions()
#6 /home/patrick/github.com/getbooka/booka/vendor/codeception/codeception/src/Codeception/Command/Run.php(432): Codeception\Codecept->__construct()
#7 /home/patrick/github.com/getbooka/booka/vendor/symfony/console/Command/Command.php(312): Codeception\Command\Run->execute()
#8 /home/patrick/github.com/getbooka/booka/vendor/symfony/console/Application.php(1022): Symfony\Component\Console\Command\Command->run()
#9 /home/patrick/github.com/getbooka/booka/vendor/symfony/console/Application.php(314): Symfony\Component\Console\Application->doRunCommand()
#10 /home/patrick/github.com/getbooka/booka/vendor/symfony/console/Application.php(168): Symfony\Component\Console\Application->doRun()
#11 /home/patrick/github.com/getbooka/booka/vendor/codeception/codeception/src/Codeception/Application.php(112): Symfony\Component\Console\Application->run()
#12 /home/patrick/github.com/getbooka/booka/vendor/codeception/codeception/app.php(45): Codeception\Application->run()
#13 /home/patrick/github.com/getbooka/booka/vendor/codeception/codeception/app.php(46): {closure}()
#14 /home/patrick/github.com/getbooka/booka/vendor/codeception/codeception/codecept(7): require('...')
#15 /home/patrick/github.com/getbooka/booka/vendor/bin/codecept(120): include('...')
#16 {main}
  thrown in /home/patrick/github.com/getbooka/booka/vendor/redcomponent/teststatistics/src/Teststatistics.php on line 17
[22:05:51][patrick@main]~/github.com/getbooka/booka(+1|%3|!255)
❯