PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'env_id' in 'field list': INSERT INTO {apachesolr_stats}
Check your drupal database, table apachesolr_stats if it has a field env_id.

If not check installation of module apachesolr_stats, maybe uninstall and reinstall. It should create that table apachesolr_stats with the field env_id.