1) What is the limit that your hosting has for this param?
We’ll fix issue with the mobile version of my account in the next theme update. To fix it before the update download this archive https://dropmefiles.com/Lltmf and place files from this archive to wp-content/themes/xstore with overwriting.
2) If you want to disable that description you can do this from Theme Options > WooCommerce > Shop > Shop page layout > Shop Page Banner Position > choose disable.
