Site not working after the database update I cloned a repo of a site to my local computer, imported the database and ran "Composer install --with-dependencies" after the installation had been done I entered the local site and it worked, then I ran "drush updb -y" and it showed a couple of errors and warnings:

    The following module is missing from the file system: aspambot       [warning]
bootstrap.inc:268
The following module is missing from the file system: phpmailer      [warning]
bootstrap.inc:268


...

PHP  27. include() /home/www/sites/zb/web/vendor/composer/ClassLoader.php:444
Drush command terminated abnormally due to an unrecoverable error.   [error]
Error: Interface 'Doctrine\Common\Reflection\ClassFinderInterface'
not found in
/home/www/sites/zb/web/core/lib/Drupal/Component/Annotation/Reflection/MockFileFinder.php,
line 14
The external command could not be executed due to an application     [error]
error.
PHP Fatal error:  Interface 'Doctrine\Common\Reflection\ClassFinderInterface' not found in /home/www/sites/zb/web/core/lib/Drupal/Component/Annotation/Reflection/MockFileFinder.php on line 14


I'm new to Drupal, so please help me get over these errors, I understand that the solution may seem straightforward to some, but I don't know what to do. Thank you!
Add "doctrine/common":"&gt;2.8" under conflict in your composer file and then run composer update.

"conflict": {
    "drupal/drupal": "*",
    "doctrine/common":"&gt;2.8"
},


See issue: https://www.drupal.org/project/drupal/issues/2986725