cant seem to load the admin menu feature. thrown this error
Uncaught SyntaxError: Unexpected token < in JSON at position 0
at JSON.parse (<anonymous>)
at Function.n.parseJSON (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.7:4)
at Function.a.parseJSON (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.7:9)
at Object.success (admin-menu-access.js?ver=4.8.7:28)
at i (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.7:2)
at Object.fireWith [as resolveWith] (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.7:2)
at y (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.7:4)
at XMLHttpRequest.c (load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.8.7:4)
users.php?page=users-user-role-editor-pro.php:1