About two hours now, my dataset does not work. I have tried closing the windows, login in and out. Clearing my browser cache, but to avail. Any help?
It is not a code issue that was caused by code on your page, it is simply a glitch in Wix system somewhere and normally closing and restarting etc would fix it or simply giving it a few minutes and trying it again later.
You will be better suited contacting Wix Support as soon as possible as they will be able to look into it as soon as they see the ticket or take your call.
https://support.wix.com/en/article/contacting-wix-support