Strip footing beam height cannot be less than 1/10 of the span.
The Complete Message:
Continuous foundation beam height cannot be less than 1/10 of the free span. (TS500 10.4.2)
Increase the thickness of the solid and called strip footings until the condition is met.
Choose the strip footing, strip footings.
Enter the properties.
In the General Settings tab, enter the value provided in the height line and click the OK button.