Hi bluebirds15,
Thanks for helping to bring this to our attention.
We are currently experiencing some technical difficulties which are causing a number of users to receive generic error messages when attempting to post items and our technical team is working to resolve the issue as soon as possible.
I do not expect the issue to take too much longer to resolve at this point in time, and will update you again through this thread as soon as the issue has been addressed or any related information becomes available.
We apologize for any inconveniences this may be causing.
-Mike