Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
For the critical error, please share the error log with us. Having the error log file will give a clear idea of why this might be happening.
You can follow this guide to enable debugging in WordPress
https://wordpress.org/support/article/debugging-in-wordpress/ or you can get in touch with your web host, they will help you locate the log file.
Regarding the Add SEO Control, please share some more details about the issue or you can share a screenshot by using this tool: https://imgur.com
Looking forward to helping you.
Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.
