Ошибка, при включении модуля

RuntimeException: Failed to start the session because headers have already been sent by "modules/contrib/social_auth_ok/social_auth_ok.install" at line 1. in Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start() (line 141 of vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php).

untimeException: Failed to start the session because headers have already been sent by "modules/contrib/social_auth_ok/social_auth_ok.install" at line 1. в Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start() (строка 141 из vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php) #0 core/lib/Drupal/Core/Session/SessionManager.php(164): Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start() #1 core/lib/Drupal/Core/Session/SessionManager.php(195): Drupal\Core\Session\SessionManager->startNow() #2 vendor/symfony/http-foundation/Session/Session.php(196): Drupal\Core\Session\SessionManager->save() #3 core/lib/Drupal/Core/StackMiddleware/Session.php(60): Symfony\Component\HttpFoundation\Session\Session->save() #4 core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #5 core/modules/page_cache/src/StackMiddleware/PageCache.php(99): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #6 core/modules/page_cache/src/StackMiddleware/PageCache.php(78): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true) #7 core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #8 core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #9 vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #10 core/lib/Drupal/Core/DrupalKernel.php(669): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #11 index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #12 {main}.