Same problem here… can somebody help resolve this issue? Thanks
same problem (version 3.9)
this only may happen for js conflict with another plugin. so I need to check it in your installation to detect the reason. if you may send a temporary wp-admin login info to contact [at] wpeden.com, I’ll check.
I disabled all the plugins except this one and still had error.
I tried in IE and Firefox and still error.
I deleted the table and created a new one and the problem disappeared.
I didn’t spend much time diagnosing the issue, so could have been anything. But when I clicked on the delete using chrome browser, chrome popped up message saying “are you sure you want to delete” yes/no and I chose yes and nothing moved/shaked.
Unfortunately I have permanently deleted the table now, otherwise I could have let you have a look around to see if there was something in it you needed to know about.