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1. emarts
   Member
   Posted 1 year ago #

   I have a error with Flexible upload:

   Warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'media_admin_css' was given in /home/****/***/***/wp-includes/plugin.php on line 311

   Please, notify the authors of this plugin ^^

2. benzilla
   Member
   Posted 1 year ago #

   Yes, this seems to be a problem a lot of folks are having. See this thread (which for some reason is listed as "resolved").

3. benzilla
   Member
   Posted 1 year ago #

   There's a fix/workaround posted on the developer's forum here. Worked for me!

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