No water is coming into my toilett tank after flushing. Every time I have to turn off the water supply underneath the toilette and then turn it back on again to get the flow started. What does this mean?

Tx

Replace the fill valve

Before you go replacing things let's take a look at the ballcock.
Whixh one is yours? Door#1 or door #2? Let me know, Tom

Door 1, the black and white picture

Chances are you have a faulty. Easy repair. Purchase a FluidMaster Seal#242 from your local big box store. To replace it you will have to shut the water off to the tank and take the tank lid off. Twist the top of the ballcock off counterclockwise, (see image) and pull up. Pry out the seal and replace it. Now place a pan over the top and turn the water back on to flush out the supply. You should have a strong stream. If not tell me about it. Reassemble, turn the water back on and give it a flush. Better now? Good luck, tom

Txs very much... your answers were very helpful.