Hello. Thank you for contacting the Toolset support.
I visited the problem URL you shared for both your production site as well as the staging site but I could not able to see the error you mentioned.
Do you mean that the error is logged to error log file when you try to visit the said problem URL? Can you please share full error description and share from where its originated. Error log should have all those information.
*** Please make a FULL BACKUP of your database and website.***
Could you please try to resolve your issue by deactivating all third-party plugins as well as with the default theme to check for any possible conflicts with any of the plugins or themes?
- Do you see any difference?