Hello,

Not sure what is your issue, but if the screenshot is not a mofidied picture, there's an issue with the translation pack (an error in one or more strings in your language).

What is your language for iCagenda ?

So, you could test in "English" to see if it's ok.

Then, if yes, check if no update available for your language in Joomla extensions manager.

If no update available for iCagenda pack in your language, try to donwload it and install it again.

Best Regards,
Cyril