question do you have JEM 2.3.0?
And did you download/install it here from the website?
Does it happen in backend? or frontend?
Did also ran into a problem but that's something else.
If you are a bit familiar with coding then the following might be helpfull:
Within components/com_jem/classes/output.class.php there is a function called ''static public function recurrenceicon". That code want to output a recurrence icon and it makes a call to jemhtml helper. but if i'm right that helper can't be found cq. MIA (Missing in action). In the version i had i couldn't find that helper so fixed/changed all references to make it run.
So what can be done is to strip that line and replace it by default image helper just to see if it's helpfull. the example below needs to tweaked a bit more (for class in output) but it gives an idea.
// $output = JHtml::_('jemhtml.icon', $image, $icon, JText::_('COM_JEM_RECURRING_EVENT'), $attr_class . $attr_title, !$app->isSite());
$output = JHtml::_('image',$icon,JText::_('COM_JEM_RECURRING_EVENT'),$attr_title,true);
return $output;
Do you have other icons displayed in the view?