Fatal error: Cannot redeclare uf284496()

When i login Drupal, click the module, it show below, please help to solve this problem, thanks very much!!!

Fatal error: Cannot redeclare uf284496() (previously declared in /home/zadmin/public_html/modules/block/block.tpl.php:1) in /home/zadmin/public_html/modules/block/block.tpl.php on line 1

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed