bug – cart crash

Hello,
The plugin worked very well until then and since I modified the settings (going from 3 to 8 the display of products for example), the plugin crashes the cart page of the site (degraded display). I uninstalled then reinstalled the plugin but now without even touching the settings the plugin bugged the cart page …
Has anyone experienced this problem?
What should I do to fix the problem?
This plugin is very convenient and we would like to continue to use it on our website.
Thank you for your help 🙂
Thierry`

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