Team – Member

Hey all,
How do I add members to a newly created team?

And why do I get the following error:

Warning: Illegal string offset 'users' in C:\xampp\htdocs\niCe-team\wp-content\themes\blackfyre\functions.php on line 2150

Warning: Illegal string offset 'pending' in C:\xampp\htdocs\niCe-team\wp-content\themes\blackfyre\functions.php on line 2150

Warning: Illegal string offset 'users' in C:\xampp\htdocs\niCe-team\wp-content\themes\blackfyre\functions.php on line 2153

Warning: Illegal string offset 'pending' in C:\xampp\htdocs\niCe-team\wp-content\themes\blackfyre\functions.php on line 2153

Warning: in_array() expects parameter 2 to be array, string given in C:\xampp\htdocs\niCe-team\wp-content\themes\blackfyre\functions.php on line 2153

if I make a 1: 1 copy of a Team