Calender doesn't work

[MythonPonty]

Hi. 

 

I've got an error after publish an event. 

The event is visible, after clicking at the the link, i got this message.

 

 

ID: 1S160/2
 

I'm using v4.7.7

[Marc]

Have you recently upgraded? If so, please check  you have no custom furls, as it may be that these are breaking your site

[MythonPonty]

Ah, thanks @Marc Stridgen

I reverted my Friendly URL... But can i change them again after reverting?    

[Jim M]

2 minutes ago, MythonPonty said:

But can i change them again after reverting?    

You can. However, keep in mind that custom FURLs are outside our scope of support.