Error reading from database

More information about this error

Debug info: Unknown column 'intro' in 'field list'
SELECT id,name,intro,introformat,timemodified FROM mdl_resource WHERE id = ? OR id = ? ORDER BY id
[array (
0 => '4',
1 => '5',
)]
Stack trace:
  • line 394 of /lib/dml/moodle_database.php: dml_read_exception thrown
  • line 809 of /lib/dml/mysqli_native_moodle_database.php: call to moodle_database->query_end()
  • line 1122 of /lib/dml/moodle_database.php: call to mysqli_native_moodle_database->get_records_sql()
  • line 1095 of /lib/dml/moodle_database.php: call to moodle_database->get_records_select()
  • line 90 of /course/resources.php: call to moodle_database->get_records_list()
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