Many of the LDAP fields (filter reference) are of type Label with an explanation here: What is a field type of label?
If you want to search on the string "invalidCredentials" which appears in the Info column, there is a Lua plugin (filtcols) that can do that.
Or filter on the LDAP fields that are available:
(ldap.protocolOp == 1) && (ldap.resultCode == 49)