LOOP: allowed memory size of bytes exhausted

Hi Virtue theme,

I got a problem with a loop caused while managing with Visual Slide Box Builder, see https://www.mabox.it . The plugin’s support team assumed that the issue is caused by something else other than the plugin because the problem persists after having unistalled. Everything began when I saw the boxes I set in the home page going out of the page towards right on mobile. I added the tag <center> shortcode </center> in the text widget on the home page and the following message started to appear in the widget settings:

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 5607127 bytes) in /web/htdocs/www.mabox.it/home/wordpress/wp-includes/wp-db.php on line 1092

Can you suggest a possible solution? Thanks a lot in advance!

Laura