Error message

• Warning: include_once(): Unable to allocate memory for pool. in drupal_environment_initialize() (line 720 of /var/www/drupal/7.93/isa/includes/bootstrap.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 15 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 16 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 17 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 18 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 19 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 20 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 21 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 22 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 23 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 24 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 25 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 26 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 27 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 28 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 29 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 30 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 31 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 32 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 33 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 34 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: include_once(): Unable to allocate memory for pool. in file_register_phar_wrapper() (line 35 of /var/www/drupal/7.93/isa/includes/file.phar.inc).
• Warning: require_once(): Unable to allocate memory for pool. in _drupal_bootstrap_variables() (line 2823 of /var/www/drupal/7.93/isa/includes/bootstrap.inc).
• Warning: require_once(): Unable to allocate memory for pool. in Database::openConnection() (line 1795 of /var/www/drupal/7.93/isa/includes/database/database.inc).