error in website with theme BestBuild - Construction WordPress Theme

Good day, I bought in themeforest some time ago the template for WordPress “BestBuild - Construction WordPress Theme” a few days ago the page stopped showing some parts of the site, the spaces appeared but blank as if the content was hidden. In the WordPress plugin configuration I got that I should do some plugin updates but I got an error that wouldn’t let me do them because I had an old PHP version on the site, update the PHP version of the site and update the plugins and not the problem was fixed. now on the contrary, in some parts of the site I get the error message “There has been a critical error on your website. Learn more about debugging in WordPress.” I am writing to you because in themeforest there is no longer the template to make queries about the theme and I would like to know how I can solve this error, if it is with an update of the plugins of the site created by you or what would the process be to fix this error with the site and keep it working well. the site link is

thank you very much for your help


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