Fatal error: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'synapsel_synapse.cci.ds_curso' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by in /home/interclassecom/public_html/includes/classes/Database.php:77 Stack trace: #0 /home/interclassecom/public_html/includes/classes/Database.php(77): PDOStatement->execute() #1 /home/interclassecom/public_html/includes/classes/Cursos.php(612): Database->select(Array, 'synapse') #2 /home/interclassecom/public_html/curso.php(27): Cursos->getCursos_byNivel('promocional', false) #3 {main} thrown in /home/interclassecom/public_html/includes/classes/Database.php on line 77