Fatal error: Uncaught Error: Only variables can be passed by reference in /var/www/html/cms6/includes/form.inc:1346 Stack trace: #0 /var/www/html/cms6/includes/form.inc(1346): _form_set_value('A', Array, Array, Array) #1 /var/www/html/cms6/includes/form.inc(1327): _form_set_value(Array, Array, Array, Array) #2 /var/www/html/cms6/includes/form.inc(1067): form_set_value(Array, Array, Array) #3 /var/www/html/cms6/includes/form.inc(888): _form_builder_handle_input_element('user_register', Array, Array, Array) #4 /var/www/html/cms6/includes/form.inc(929): form_builder('user_register', Array, Array) #5 /var/www/html/cms6/includes/form.inc(929): form_builder('user_register', Array, Array) #6 /var/www/html/cms6/includes/form.inc(929): form_builder('user_register', Array, Array) #7 /var/www/html/cms6/includes/form.inc(929): form_builder('user_register', Array, Array) #8 /var/www/html/cms6/includes/form.inc(405): form_builder('user_register', Array, Array) #9 /var/www/html/cms6/includes/form.inc(120): drupal_process_form('user_regi in /var/www/html/cms6/includes/form.inc on line 1346