LOOP: allowed memory size of bytes exhausted

[ Moderator note: moved to How-to and Troubleshooting. ]

Hi there,

I got a problem with a loop caused while managing with Visual Slide Box Builder. 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