Home › Forums › Plugin Support › WP User Frontend (Free Version) › WP PManager PRO + User Frontend This topic is: not resolved Tagged: line496, pro, Warning This topic contains 1 reply, has 2 voices, and was last updated by towhid 3 years, 9 months ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts August 24, 2015 at 5:08 pm #68850 AlbertoMember Hi, We have bought WP Project Manager Pro due to private access, but we received this message when we installed the WP User Frontend to put it in a menu option: Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WeDevs_CPM' does not have a method ‘calender_scripts' in /home/project1/webapps/wp/wp-includes/plugin.php on line 496 What we should do? Thank you very much! Alber August 25, 2015 at 11:41 am #68957 towhidParticipant Post count: 4505 Hello Albert, Please deactivate those two plugins. Now active WP User Frontend first. Then active WP Project Manager Pro. If the error still remains then deactivate those two plugins again. Now active WP Project Manager Pro. Thanks Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The topic ‘WP PManager PRO + User Frontend’ is closed to new replies.