I have 2 websites on which i recently installed Lifter LMS.
One of those websites has the GP Premium Theme.
Today i couldn’t loging on BOTH of my websites anymore ; had to arrange the host to be able to log in again….
Today i updated the Lifter LMS plugin ; that caused the break down.
The failures to be seen were :
Fatal error: Can’t use method return value in write context in /home/xxx/public_html/wp-content/plugins/lifterlms/includes/models/model.llms.question.php on line 406
Fatal error: Call to undefined function is_user_logged_in() in /home/xxx/wp-content/mu-plugins/endurance-page-cache.php on line 370
Do you know about these problems ?
As i use 2 websites and two respectable themes (one is GP Premium) and on both i upgraded the Lifter LMS Plugin, the fault may be lying there obviously.
I already put my question there as well, but do you know what happens here, and what to do about it ?
Because Lifter LMS is the only plugin which really serves my needs, i must keep it…..