404 error

i get a 404 erroe whenever i try and use this plugin – i have the flatsome theme which prompts me to use it and when installed wherter i am an authenticated user or not i get the 404 error.

I have read throught the forums and have attempted to recreate permalinks as others have been advised but this has not resulted in any change.

Please help

the website this is currently an issue on is wholesale.delighthomewares.com.au