[Resolved] Smarty: Uncaught exception: SmartyException with message Call of unknown method config_load

Tried to load the configuration file but not succeed..

Fatal error: Uncaught exception SmartyException with message Call of unknown method config_load in X:\XXX\smarty\sysplugins\smarty_internal_templatebase.php:806 Stack trace: #0
Smarty_Internal_TemplateBase->__call('config_load', Array)#
Smarty->config_load(...) #2
require_once(...) #3 {main} thrown in
X:\XXX\smarty\sysplugins\smarty_internal_templatebase.php on line 806

Solution
The error was caused by the template cache, remove it and try again.