In case you are getting this kind of error after updating your LiveAgent:
"Fatal error: Class ConversationDetailExampleExten sion_CustomerEditExtension contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (La_Customer_EditExtension:: getWidgetUrl) in /home/optimon/support/plugins/ ConversationDetailExampleExten sion/CustomerEditExtension. class.php on line 18"
"Fatal error: Class ConversationDetailExampleExten
you have to login to your FTP and remove ConversationDetailExam pleExtension/ plugin directory from plugins/ directory. This will fix the issue.