Smarty 3 error with compiler_object, how to solve?

Question

PHP

Now I'm running someone else's self-written site. From time to time, the site loads the page incorrectly, there are inscriptions like %Banner1% or it loads without styles.
The following is in the logs:

PHP Fatal error:  Uncaught exception 'SmartyException' with message 'template property 'compiler_object' does not exist.' in smarty/sysplugins/smarty_internal_template.php:953
Stack trace:
#0 smarty/sysplugins/smarty_internal_template.php(247): Smarty_Internal_Template->__get('compiler_object')
#1 smarty/sysplugins/smarty_internal_template.php(456): Smarty_Internal_Template->compileTemplateSource()
#2 smarty/sysplugins/smarty_internal_template.php(567): Smarty_Internal_Template->renderTemplate()
#3 cache/templates/15172c3736f9a98e961ddd37225befea8786ccaf.file.defaultList.tpl.php(137): Smarty_Internal_Template->getRenderedTemplate()
#4 smarty/sysplugins/smarty_internal_templ in smarty/sysplugins/smarty_internal_template.php on line 953

I believe this error is caused by Smarty. I have never worked with this template engine, tell me what could be the error and how to solve it?

Answer 1

You need to reproduce the error, find the conditions for its occurrence using the debugger and eliminate them.