Red “Internal Error” with code

I am getting a red box with a “Internal Error” message with a reference number.

If you see an error with a code that appears as follows

Error with code.png
please send the reference code in an email to support@matchmyemail.com, along with a brief description of what was happening at the time of the error. The code will allow staff to look up the type of error which will aid in further troubleshooting.

What do you think?