I’ve deleted ‘strong’ from the Reset section and added Phil’s suggestion but it still hasn’t worked.
I don’t have the excerpt when creating posts. alchymyth, what do you mean by the over-active reset style?
Phil, I tried your idea but it didn’t work.
The problem is resolved now. Thanks to everyone for their support.
The problem was that I hadn’t input the necessary data in the correct location.
I’ve contacted my hosting company asking for the details but it’s still not working.