Fatal error: Smarty error: syntax error: invalid attribute name: '=' (Smarty_Compiler

Hi Guys,



We tried disabling a Block but immediately got this error:



Fatal error: Smarty error: syntax error: invalid attribute name: ‘=’ (Smarty_Compiler.class.php, line 1546) in /home/rocate/domains/DOMAIN.com/public_html/lib/templater/Smarty.class.php on line 1095



and now we cannot get in to this section (admin/domain/blocks)



Any thoughts?