Error Log Filter Error

[newtoallthis]

When trying to filter the error log to display, for example, critical errors only, I get the following additional error:-

An Error Has Occurred!
The database value you're trying to insert does not exist: filter

This error occurs whichever type of error I try to display.

Any ideas what the problem may be please?

[newtoallthis]

It was a corrupt file. Newly upped file resolved the issue.