@sahsa These two are our brand new Strawberry plants and had already grown a bunch of them when we first bought them so since the first lot, there is only one new Strawberry growing. Though I am always open to advice if any can be given on how to grow them best!
I bought some about 6 years ago. I just let the runners that I want take then cut them. And Mark them up 2017 then cut all other runners off so the plant can get on with other things (like giving my fruit) i get rid of the plant after 3 years old. That way always have a good supply. Years 2 and 3 seem to produce best for me. Don't forget to feed with tomato feed ;-)
Runners will give you another strawberry plant, new plants don't often give many (if any) strawberries. If you pot or plant the runner and leave it connected it will allow the new plant the best start. If you chop it and plant it, it's harder for the plant to start growing. Flowers will produce the fruit not the runners. Once I have enough runners planted (that I will use in the future years) I cut all others. Could be a number of reasons if you aren't getting fruit.