Fatal error: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '=<br /><b>Notice</b>: Undefined index: pk_clave_gru in <b>/home/supervisor9762/' at line 2 in /home/supervisor9762/public_html/productos/paginacion.php:52
Stack trace:
#0 /home/supervisor9762/public_html/productos/paginacion.php(52): PDOStatement->execute()
#1 /home/supervisor9762/public_html/productos/index.php(19): include('/home/superviso...')
#2 /home/supervisor9762/public_html/index.php(86): include('/home/superviso...')
#3 {main}
thrown in /home/supervisor9762/public_html/productos/paginacion.php on line 52