Diagnosis
You have entered an incompatible combination of operators for theinterval.
In a closed interval, only the following operators are allowed for thefirst value ("from" value):
>,,-->,,greater than
>=,,-->,,greater than or equal to
For the second value ("to" value), only the following operators areallowed:
<,,-->,,less than
<=,,-->,,less than or equal to

Procedure
Correct the operators for the interval.