Hello,
I've just started testing out the database activity module and every second or third time I click on link within the module ( it doesnt seem to matter which one) it goes to a blank screen. I turned on debugging and this is what it says:
Fatal error: Class 'portfolio_module_caller_base' not found in /home/mysite/public_html/moodle/mod/data/locallib.php on line 29
Any ideas what is going on?