Hi all, Dear @admin @WebCrew Time from time I've got similar errors. _I'm using php 7.2, mysql 5.7 and codoforum v.5.1_ When I try to reply or just open a category page: #####Fatal error: Uncaught Error: Function name must be a string in C:\OSPanel\domains\cfc.local\sys\CODOF\HB\Render.php:143 Stack trace: #0 C:\OSPanel\domains\cfc.local\sys\Controller\forum.php(489): CODOF\HB\Render::tpl('forum/topic', Array) #1 C:\OSPanel\domains\cfc.local\routes.php(506): Controller\forum->topic(40, 1) #2 [internal function]: {closure}(40, 'ocp-and-cdi-whi...') #3 C:\OSPanel\domains\cfc.local\sys\CODOF\Router\Router.php(91): call_user_func_array(Object(Closure), Array) #4 C:\OSPanel\domains\cfc.local\sys\CODOF\Router\Router.php(56): CODOF\Router\Router::_dispatch(Object(FastRoute\Dispatcher\GroupCountBased)) #5 C:\OSPanel\domains\cfc.local\routes.php(892): CODOF\Router\Router::dispatch() #6 C:\OSPanel\domains\cfc.local\index.php(22): require('C:\\OSPanel\\doma...') #7 {main} thrown in C:\OSPanel\domains\cfc.local\sys\CODOF\HB\Render.php on line 143 or ##### Fatal error: Uncaught Error: Function name must be a string in C:\OSPanel\domains\cfc.local\sys\CODOF\HB\Render.php:143 Stack trace: #0 C:\OSPanel\domains\cfc.local\sys\Controller\forum.php(263): CODOF\HB\Render::tpl('forum/category', Array) #1 C:\OSPanel\domains\cfc.local\routes.php(483): Controller\forum->category('nft', 1) #2 [internal function]: {closure}('nft') #3 C:\OSPanel\domains\cfc.local\sys\CODOF\Router\Router.php(91): call_user_func_array(Object(Closure), Array) #4 C:\OSPanel\domains\cfc.local\sys\CODOF\Router\Router.php(56): CODOF\Router\Router::_dispatch(Object(FastRoute\Dispatcher\GroupCountBased)) #5 C:\OSPanel\domains\cfc.local\routes.php(892): CODOF\Router\Router::dispatch() #6 C:\OSPanel\domains\cfc.local\index.php(22): require('C:\\OSPanel\\doma...') #7 {main} thrown in C:\OSPanel\domains\cfc.local\sys\CODOF\HB\Render.php on line 143 PS. After reload page everything is ok and I see my reply to public.|( What does that mean?(blush)

Hi Can you try deleting the cache from the backend?

[quote="pid:26101, uid:1"]Can you try deleting the cache from the backend?[/quote] Yeah, and I notice this error shortly after deleting the cache, but not at the first interaction;)