WebCalendar is a PHP application used to maintain a calendar for a single user or an intranet group of users. It can also be configured as an event calendar.
I have a working WebCalendar but after a migration to another server by my provider, suddenly I cannot add any new appointments anymore. I can fill in all details but when I click [Save] a message appears saying 'Invalid referring URL'. I still can view and delete appointments. Only no new ones can be created. Where should I look to solve this?
I have a working WebCalendar but after a migration to another server by my provider, suddenly I cannot add any new appointments anymore. I can fill in all details but when I click [Save] a message appears saying 'Invalid referring URL'. I still can view and delete appointments. Only no new ones can be created. Where should I look to solve this?