Error 500 when active theme (not default)

[rb10]

hi to all, when i active a different theme from default, i have 500 error on homepage, other pages work fine , what could be depend ? 

thanks

[ComGrafPL]

Whats debug saying?

[Knowband Plugins]

Enable the debug mode OR check the Server/PrestaShop error log for the details of the error. 

[rb10]

10 hours ago, Knowband Plugins said:

Enable the debug mode OR check the Server/PrestaShop error log for the details of the error. 

Backend fatal error: PHP Fatal error:  Uncaught ErrorException: Warning: Undefined property: Symfony\\Component\\VarDumper\\Caster\\CutStub::$cache_locking in /home/vzeactxp/public_html/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php:737\nStack trace:\n#0 [internal function]: Smarty_Internal_Template->__destruct()\n#1 {main}\n  thrown in /home/vzeactxp/public_html/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php on line 737\n, referer: https://site.com/admin/index.php/configure/advanced/performance/?_token=JhKzH09Oap6MHnOiosualpOBwijZuMpfj9G_uQt36mU

 

[Mehdi Bourechka]

1 hour ago, rb10 said:

Backend fatal error: PHP Fatal error:  Uncaught ErrorException: Warning: Undefined property: Symfony\\Component\\VarDumper\\Caster\\CutStub::$cache_locking in /home/vzeactxp/public_html/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php:737\nStack trace:\n#0 [internal function]: Smarty_Internal_Template->__destruct()\n#1 {main}\n  thrown in /home/vzeactxp/public_html/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php on line 737\n, referer: https://site.com/admin/index.php/configure/advanced/performance/?_token=JhKzH09Oap6MHnOiosualpOBwijZuMpfj9G_uQt36mU

 

 

Turn on full debug: Advanced Parameters → Performance

Debug mode: ON

Disable all overrides: YES (temporarily)

Smarty: Force compile = YES, Cache = NO

Clear cache.

Disable homepage modules (one by one) under Design → Positions for displayHome (sliders, megamenu, page builders). When the homepage loads, the last re-enabled module before the crash is your culprit.

If u need any assistance I can help