Don't know what the button does but when I press it this is what I get

Table 'tom10prod.t_rac_dist' doesn't exist
SQL: SELECT * FROM t_rac_dist WHERE ((dist_length >= 5) AND (dist_length <=20)) ORDER BY dist_length

It means dont put your nags in the league because they will lose by 20 lengths

It's SQL code: Select all lines of data from the database distance that's distance is greater than or equal to 5 furlongs and less than or equal to 20 furlongs and to order it by smallest distance to longest distance. Basically it just means that the link is disabled or that the SQL code has errors in it.