Basic App - Free CMS on CodeIgniter 4

I'd look into PhpTheme\ there is dir html-helper so i change 'PhpTheme\Html\HtmlHelper' > 'PhpTheme\HtmlHelper\HtmlHelper'

and now i face this problem :

Error

Call to undefined method PhpTheme\HtmlHelper\HtmlHelper::linkCss()

Thanks. I fixed the error. You need to update the system:
git pull
composer install
or
composer/update

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Basic App, an open source simple CMS based on CodeIgniter 4