On upgrading joomla to 3.8, access to civicrm front end pages (eg event listing)results in no response ie white screen.
Currently running Civcrm 5.6.1. The error does not occur if I log in to the front end as su.
On updating to joomla 3.9 it throws a red fatal error: 0 - @import url(/administrator/components/com_civicrm/civicrm/css/civicrm.css); @import url(/administrator/components/com_civicrm/civicrm/css/crm-i.css); @import url(/administrator/components/com_civicrm/civicrm/bower_components/font-awesome/css/font-awesome.min.css); Sorry, due to an error, we are unable to fulfill your request at the moment. You may want to contact your administrator or service provider with more details about what action you were performing when this occurred. You do not have permission to access this page.