I cannot show the certificate on my screen

[dperial]

Describe the bug
A table doesn't exist, and i don't know which one it's.
I have two table in my DB ( simplecertificate and simplecertificate_issues).

Moodle Version(s)
The moodle version (Moodle 3.11)

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Turn editing on'
2. Click on 'Add a new Activity ( simple certificate) in a section'
3. Scroll down to 'Set the Certificate name & Certificate text'
4. Save the configuration
5. See error

Expected behavior
AI should see the certificate properly in my screen. Because the plugin developer said, we don't have to make any changes in code, also we don't have to upload a image file.

Screenshots

Additional context
Add any other context about the problem here.

[bozoh]

i think moodle have removed some fields form user profile (skype, icq, ...), it's needs to be update....

check is debug mode is on,
try to turn off debug