Undefined array key

[ryjanx]

I'm getting the following errors:

Warning: Undefined array key "file" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 304

Warning: Undefined array key "file" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 312

Warning: Undefined array key "do" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 314

Warning: Undefined array key "do" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 437

Warning: Undefined array key "do" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 475

Warning: Undefined array key "do" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 489

Warning: Undefined array key "do" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 501

Warning: Undefined array key "action" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 532

Also the response of the AJAX request filemanager.php?do=list is the following:

Warning: Undefined variable $sortBy in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 323

Warning: Undefined variable $sortDir in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 325

Warning: Undefined array key "sortBy" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 330

Warning: Undefined array key "sortDir" in C:\xampp80\htdocs\project\public\admassets\plugins\summernote\plugins\filebrowser\filemanager.php on line 331

What's the problem?

[tiarsoftboy]

I am waiting for the answer