In some situations it happens that the external resources used in this Flexi plugin and your theme/plugin is same. Due to this the site activities is unusual. Because the function/style is executed but of different in nature.
To solve from this, we need to manually edit the plugin/theme to delete it so that only one instances is available at a time.
To prevent this, we have come up with an easy solution.
You can disable some of the available resources from Flexi Settings. It is also used to debug that if the included resources with the plugin is creating an issue.
Enable resources back to original state if that is not creating an issue.

Enable it from
Flexi -> Settings -> Extension tab & click on tool icon to toggle resources.