Every time I’ve seen this error it’s been a plugin at fault.
Temporarily deactivate your plugins. Reactivate them one by one. Is one of them to blame? Possibly the last one you installed or updated?
If not, switch to the default theme – better now?
I’m on a custom theme and inadvertantly upgraded my WooCommerce. I’m on WP 4.3. I tried the remedies and had no luck
Did you try what I suggested above yet?
Hi Jason, I had a similar problem and switched off all the plugins. Then it worked. Then re activated plugins one by one and found the problem plugin called “Instant Suggest”
Thanks for your help on that
Have a great day
Hi Jason; thanks for the advice. Yes; I did deactivate all of my plugins. Still didn’t work. Im not sure how to go about switching to the “default” theme. I hired a guy to build my site, so familiarization is taking me awhile.