Hello Jip,
this error is the typical result of a conflict with another plugin, preventing the jQuery Easy plugin engine to 'finish' its work.
You can try re-ordering the system plugins.
As a reminder:
jQuery Easy cannot analyze and fix issues on aggregated or zipped code.
Some tools or templates perform high levels of optimizations that render scripts unidentifiable (the plugin looks for file names but not the content of those files), therefore if a file is a compilation of library scripts, it won't find those scripts). Use one or the other. In this case, identify issues with jQuery Easy on non-aggregated code, fix the code internally (or by requesting support for the faulty extension(s)), disable jQuery Easy and finally optimize the code before putting the site into production.
Plugins are executed in the order in which they appear in the Ordering column of the Plugin Manager.
The jQuery Easy plugin needs to be called last. In most cases, the ordering doesn’t matter. However, in some cases, where you have more than one plugin triggered from the same event, and where the results of one plugin can affect the processing of jQuery Easy, the order can be important. In this case, you can change the order in the Plugin Manager by adjusting the Ordering values to control the execution order.
Olivier.